March 1
day of the year

March 1 is the 60th day of the year (61st in leap years) in the Gregorian calendar; 305 days remain until the end of the year.
Events
Pre-1600
509 BC – Publius Valerius Publicola celebrates the first triumph of the Roman Republic after his victory over the deposed king Lucius Tarquinius Superbus at the Battle of Silva Arsia.
293 – Emperor Diocletian and Maximian appoint Constantius Chlorus and Galerius as Caesars. This is considered the beginning of the Tetrarchy, known as the Quattuor Principes Mundi ("Four Rulers of the World").
350 – Vetranio proclaims himself Caesar after being encouraged to do so by Constantina, sister of Constantius II.
834 – Emperor Louis the Pious is restored as sole ruler of the Frankish Empire.
1290 - University of Coimbra, in Portugal, is officially chartered by King Denis.
1476 – Forces of the Catholic Monarchs engage the combined Portuguese-Castilian armies of Afonso V and Prince John at the Battle of Toro.
1562 – Sixty-three Huguenots are massacred in Wassy, France, marking the start of the French Wars of Religion.
1601–1900
1628 – Writs issued in February by Charles I of England mandate that every county in England (not just seaport towns) pay ship tax by this date.
1633 – Samuel de Champlain reclaims his role as commander of New France on behalf of Cardinal Richelieu.
This brief starts where responsible research should: with the source description of “March 1” as day of the year. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as day of the year. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 8, 2026. The linked authority identifier is Q2393. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1600, 1290, 1476 and 1562.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
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The closest primary source, responsible institution and strongest cited specialist reference.
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- Establish the record: confirm the title “March 1”, its source revision and the description used here.
- Expand the search: follow March 1 primary sources, March 1 archive and March research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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This entry incorporates text from “March 1” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.