Datasets:
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Error code: DatasetGenerationError
Exception: TypeError
Message: Couldn't cast array of type string to null
Traceback: Traceback (most recent call last):
File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1827, in _prepare_split_single
for key, table in generator:
^^^^^^^^^
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 613, in wrapped
for item in generator(*args, **kwargs):
~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
self._cast_table(pa_table, json_field_paths=json_field_paths),
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
pa_table = table_cast(pa_table, self.info.features.arrow_schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2378, in table_cast
return cast_table_to_schema(table, schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2312, in cast_table_to_schema
cast_array_to_feature(
~~~~~~~~~~~~~~~~~~~~~^
table[name] if name in table_column_names else pa.array([None] * len(table), type=schema.field(name).type),
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
feature,
^^^^^^^^
)
^
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 1861, in wrapper
return pa.chunked_array([func(chunk, *args, **kwargs) for chunk in array.chunks])
~~~~^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2152, in cast_array_to_feature
return array_cast(
array,
...<2 lines>...
allow_decimal_to_str=allow_decimal_to_str,
)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 1863, in wrapper
return func(array, *args, **kwargs)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2014, in array_cast
raise TypeError(f"Couldn't cast array of type {_short_str(array.type)} to {_short_str(pa_type)}")
TypeError: Couldn't cast array of type string to null
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1369, in compute_config_parquet_and_info_response
parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
~~~~~~~~~~~~~~~~~~~~~~~~~^
builder, max_dataset_size_bytes=max_dataset_size_bytes
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
)
^
File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 948, in stream_convert_to_parquet
builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1694, in _prepare_split
for job_id, done, content in self._prepare_split_single(
~~~~~~~~~~~~~~~~~~~~~~~~~~^
gen_kwargs=gen_kwargs, job_id=job_id, **_prepare_split_args
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
):
^
File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1880, in _prepare_split_single
raise DatasetGenerationError("An error occurred while generating the dataset") from e
datasets.exceptions.DatasetGenerationError: An error occurred while generating the datasetNeed help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
id string | corpus string | type string | author string | title string | title_alt list | text_basis null | date_composed string | date_precision string | date_note null | numbering dict | source_edition dict | transcription dict | modernization string | license_text string | license_apparatus string | wikidata null | prev null | next null | part_of string | editorial_note null | source_id string | passage_ids list | word_count int64 | themes_auto list | open bool | closed_reason null | legacy_ids list | text string |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
jw/works/genuine-christianity | jw-works | treatise | john-wesley | A Plain Account Of Genuine Christianity | [] | null | null | unknown | null | {
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} | none | Public Domain Mark 1.0 | CC BY 4.0 | null | null | null | jw-works | null | jw-genuine-christianity | [
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"jw-genuine-christi... | 5,625 | [
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"jw-genuine-christi... | Genuine Christianity. Yu £8 ND: Ne A. 3-4. hk 8 E have been long disputing about onHAISG6E TIANS, about CHRISTIANITY, and the EVIDENCE whereby it is supported. But what do these terms mean? Whois a christian indeed ? What is real, genuine christianity? And what is the surest and most, acce slible evidence (if I may so ... |
jw/works/character | jw-works | treatise | john-wesley | The Character of a Methodist | [] | null | 1742 | year | null | {
"bicentennial": null,
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} | {
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"scan_url": "https://www.fumcfairfield.org/wp-content/uploads/2018/06/Character-of-a-Methodist.pdf",
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} | {
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} | none | Public Domain Mark 1.0 | CC BY 4.0 | null | null | null | jw-works | null | jw-character | [
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"jw-char... | 6,315 | [
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"jw-char... | by John Wesley "Not as though I had already attained." TO THE READER Preface 1. SINCE the name first came abroad into the world, many have been at a loss to know what a Methodist is; what are the principles and the practice of those who are commonly called by that name; and what the distinguishing marks of this sect, "... |
jw/works/general-rules | jw-works | treatise | john-wesley | The General Rules of the Methodist Societies | [] | null | 1743 | year | null | {
"bicentennial": null,
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} | {
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} | {
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} | none | Public Domain Mark 1.0 | CC BY 4.0 | null | null | null | jw-works | null | jw-general-rules | [
"jw-general-rules-000",
"jw-general-rules-001",
"jw-general-rules-002",
"jw-general-rules-003",
"jw-general-rules-004",
"jw-general-rules-005"
] | 2,114 | [
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"means-of-grace",
"repentance",
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] | true | null | [
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] | United Societies, London, Bristol, King fwood, and Newcastle upon Tyne. The Sixth EDITION. (Price One Penny) ee . r . id (a 0-7 VS N g x vv 5 WE S Wv t: IN the latter End of the Year 1739. eight or ten Persons came to me im London, who appeared to be deeply ? convinced of Sin, and earnestly groaning for Redemption, The... |
jw/works/letter-roman-catholic | jw-works | treatise | john-wesley | A Letter to a Roman Catholic | [] | null | 1749 | year | null | {
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} | none | Public Domain Mark 1.0 | CC BY 4.0 | null | null | null | jw-works | null | jw-letter-roman-catholic | [
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] | 2,911 | [
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"pneumatology",
"primitive-christianity",
"repentance",
"sanctifying-grace",
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] | true | null | [
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] | Letter to a Roman Catholic by John Wesley To a Roman Catholic DUBLIN July 18, 1749. 1. You have heard ten thousand stories of us who are commonly called Protestants, of which, if you believe only one in a thousand, you must think very hardly of us. But this is quite contrary to our Lords rule, 'Judge not, that ye be no... |
jw/sermons/016 | jw-sermons | sermon | john-wesley | The Means of Grace | [] | null | 1746 | year | null | {
"bicentennial": 16,
"jackson_running": 16,
"sugden": 16
} | {
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"scan_url": "https://wesley.nnu.edu/john-wesley/the-sermons-of-john-wesley-1872-edition/sermon-16-the-means-of-grace/",
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} | {
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} | none | Public Domain Mark 1.0 | CC BY 4.0 | null | null | null | jw-sermons | null | jw-means-of-grace | [
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"jw-means-of-grace-010",
"jw-means-of-grace-... | 6,022 | [
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"primitive-christianity",
"repentance",
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] | true | null | [
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"jw-means-of-grace-... | Sermon 16: The Means of Grace Text: "Ye are gone away from mine ordinances, and have not kept them." Mal. 3:7. I. Introduction and Historical Context 1. The question of whether God ordained specific means of grace under Christian dispensation would never have been proposed in the apostolic church except by one openly a... |
jw/sermons/039 | jw-sermons | sermon | john-wesley | Catholic Spirit | [] | null | 1750 | year | null | {
"bicentennial": 39,
"jackson_running": 39,
"sugden": 39
} | {
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"scan_url": "https://wesley.nnu.edu/john-wesley/the-sermons-of-john-wesley-1872-edition/sermon-39-catholic-spirit/",
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} | {
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} | none | Public Domain Mark 1.0 | CC BY 4.0 | null | null | null | jw-sermons | null | jw-catholic-spirit | [
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"jw-catholic-spirit-008",
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"jw-catholic-spirit-010",
"jw-cath... | 4,849 | [
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] | true | null | [
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"jw-cath... | Sermon 39: Catholic Spirit Text: "And when he was departed thence, he lighted on Jehonadab the son of Rechab coming to meet him, and he saluted him, and said to him, Is thine heart right, as my heart is with thy heart And Jehonadab answered: It is. If it be, give me thine hand." 2 Kings 10:15. Introduction 1. It is all... |
jw/sermons/053 | jw-sermons | sermon | john-wesley | On the Death of the Rev. Mr. George Whitefield | [] | null | 1770 | year | null | {
"bicentennial": 53,
"jackson_running": 53,
"sugden": 53
} | {"editor":null,"title":null,"edition":null,"place":null,"publisher":null,"year":null,"volume":null,"(...TRUNCATED) | {
"derived_from": null,
"corrected_against_scan": false,
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"corrected_on": null
} | none | Public Domain Mark 1.0 | CC BY 4.0 | null | null | null | jw-sermons | null | jw-sermon-053 | ["jw-sermon-053-000","jw-sermon-053-001","jw-sermon-053-002","jw-sermon-053-003","jw-sermon-053-004"(...TRUNCATED) | 7,834 | ["catholic-spirit","christian-perfection","christology","free-will","justifying-grace","means-of-gra(...TRUNCATED) | true | null | ["jw-sermon-053-000","jw-sermon-053-001","jw-sermon-053-002","jw-sermon-053-003","jw-sermon-053-004"(...TRUNCATED) | "On The Death of The Rev. Mr. George Whitefield Preached at the Chapel in Tottenham-Court Road on Su(...TRUNCATED) |
jw/sermons/086 | jw-sermons | sermon | john-wesley | A Call to Backsliders | [] | null | 1778 | year | null | {
"bicentennial": 86,
"jackson_running": 86,
"sugden": null
} | {"editor":null,"title":null,"edition":null,"place":null,"publisher":null,"year":null,"volume":null,"(...TRUNCATED) | {
"derived_from": null,
"corrected_against_scan": false,
"corrector": null,
"corrected_on": null
} | none | Public Domain Mark 1.0 | CC BY 4.0 | null | null | null | jw-sermons | null | jw-sermon-086 | ["jw-sermon-086-000","jw-sermon-086-001","jw-sermon-086-002","jw-sermon-086-003","jw-sermon-086-004"(...TRUNCATED) | 5,773 | ["christian-perfection","christology","justifying-grace","means-of-grace","pneumatology","reign-of-g(...TRUNCATED) | true | null | ["jw-sermon-086-000","jw-sermon-086-001","jw-sermon-086-002","jw-sermon-086-003","jw-sermon-086-004"(...TRUNCATED) | "A Call To Backsliders \"Will the Lord absent himself for ever And will he be no more entreated Is h(...TRUNCATED) |
jw/sermons/110 | jw-sermons | sermon | john-wesley | Free Grace | [] | null | 1739 | year | null | {
"bicentennial": 110,
"jackson_running": 128,
"sugden": null
} | {"editor":null,"title":null,"edition":null,"place":null,"publisher":null,"year":null,"volume":null,"(...TRUNCATED) | {
"derived_from": null,
"corrected_against_scan": false,
"corrector": null,
"corrected_on": null
} | none | Public Domain Mark 1.0 | CC BY 4.0 | null | null | null | jw-sermons | null | jw-free-grace | ["jw-free-grace-000","jw-free-grace-001","jw-free-grace-002","jw-free-grace-003","jw-free-grace-004"(...TRUNCATED) | 4,652 | ["assurance","christology","free-will","means-of-grace","pneumatology","prevenient-grace","repentanc(...TRUNCATED) | true | null | ["jw-free-grace-000","jw-free-grace-001","jw-free-grace-002","jw-free-grace-003","jw-free-grace-004"(...TRUNCATED) | "Sermon 128: Free Grace Preached at Bristol, in the year 1740 Text: \"He that spared not his own Son(...TRUNCATED) |
jw/works/thoughts-slavery | jw-works | treatise | john-wesley | Thoughts Upon Slavery | [] | null | 1774 | year | null | {
"bicentennial": null,
"jackson_running": null,
"sugden": null
} | {"editor":null,"title":null,"edition":null,"place":null,"publisher":null,"year":null,"volume":null,"(...TRUNCATED) | {
"derived_from": null,
"corrected_against_scan": false,
"corrector": null,
"corrected_on": null
} | none | Public Domain Mark 1.0 | CC BY 4.0 | null | null | null | jw-works | null | jw-thoughts-slavery | ["jw-thoughts-slavery-000","jw-thoughts-slavery-001","jw-thoughts-slavery-002","jw-thoughts-slavery-(...TRUNCATED) | 8,934 | ["free-will","means-of-grace","primitive-christianity","repentance","scriptural-authority","works-me(...TRUNCATED) | true | null | ["jw-thoughts-slavery-000","jw-thoughts-slavery-001","jw-thoughts-slavery-002","jw-thoughts-slavery-(...TRUNCATED) | "By _JOHN WESLEY_, A. M. Illustration and sold by _G. Whitfield_, at the Chapel, City-Road; and at t(...TRUNCATED) |
Wesley Corpus
The open writings of John and Charles Wesley: 4,939 works, 20,734 passages, 5.46 million words: sermons, journals, letters, treatises, hymns and biblical notes, with source-edition citations and structured metadata.
Two configurations:
works: one record per work, full text inline intext, plus title, author, type, composition date, numbering, source edition, transcription and modernization notes, automatic themes, prev/next links and word count.passages: one record per passage of an open work (work_idlinks toworks), matching the passage records served by the site.
What is not included
129 works are excluded because their sources failed a quality gate (more than 5% non-word rate at the source). Publishing damaged OCR as trainable text would teach a wrong Wesley, so those works are not in this dataset. They are disclosed on the licence page and on their (noindex) pages on the site.
Licence
The texts. John and Charles Wesley's writings are in the public domain (Public Domain Mark 1.0). Where a transcription error has been corrected, that correction is released under CC0.
The apparatus. Titles, provenance notes, editorial notes, cross-references, curated themes and the JSON records themselves are CC BY 4.0. Attribute to "History of Methodism / Wesley Corpus."
Machine use. Machine-learning training, fine-tuning, evaluation and retrieval are explicitly permitted and welcome under those terms; keep attribution on the apparatus.
Full terms: https://corpus.historyofmethodism.com/license
Canonical home
https://corpus.historyofmethodism.com. This dataset is a machine-generated export of the site (generated 2026-09-07 by scripts/build_export.py), regenerated from the source and never hand-edited; the site remains the one published address of the text.
Notes on the data
These are transcriptions of historical printed editions, with the errors that implies; each work records its source edition and text basis. Fields marked themes_auto are computed, not curated.
Contact: wilson@wrootlabs.com
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