How to read

How this site works

Yearline organises history by year, from AD 1 to 2026. It starts small on purpose: a record appears only when an exact source passage supports it, and it always says what it cannot establish.

Kinds of record

Dated event

A supported occurrence placed in a year, without invented day precision. None in this release.

Attributed account, undated

Something a source reports, with no absolute year established.

Ongoing condition

A bounded observation; never presumed to last beyond its supported scope. None in this release.

Approximate date

A source’s date range. It is not an event in every year of the range.

What a document says

The wording of a document, which is not proof of what happened in practice.

Dates

• Document year. The year a source places the record in, such as the date written on a treaty. It is not the date of every event the document mentions.
• Approximate range. A range from the source, such as a museum catalogue’s date. It does not mean something happened in every year of the range.
• No absolute date. The source’s date wording is kept and no year is guessed.

Sources and translations

Each record quotes the source text it relies on. Original-language text, historical translations, official texts and AI working translations are labelled separately. An AI working translation is not official or authoritative. A law’s wording is not evidence of how it worked in practice. A museum catalogue entry is the museum’s description; no object or image was inspected.

Checks

Each statement is tied to an exact source version and passed an independent AI evidence review. AI agreement is not proof of historical truth, and technical tests are not an accuracy rate. If a source shows something is wrong, prepare a correction.

The name

Yearline is this project’s name. It has not been legally cleared as a trademark.