Categories › Knowledge & Everyday › Research, papers & reference data
Sourced history by year: events, world leaders, prices and No. 1 songs, each with its source.
Remote server: your requests and data go to slashyear.com. Claude Code: claude mcp add --transport http slashyear-sourced-history https://slashyear.com/mcp · Claude app: Settings → Connectors → Add custom connector.
The tools this server listed when we connected to it, in its own words.
search_history — Full-text search across every dated entry in the historical record, plus the subjects that match. Each entry is a sentence quoted verbatim fget_year — Everything the record holds for one year: the headline summary and every dated entry, grouped by subject, each with its source revision.get_day — One calendar day across every recorded year — what happened on 4 July in all of them. This aggregate exists in no single encyclopedia articlget_timeline — One subject's whole record in date order: every dated entry across all years in which Wikipedia's editors linked to it, with its Wikidata idget_country — One country's dated record, century by century, harvested from the per-country year articles English Wikipedia writes separately ('1969 in Jget_year_facts — What a year (1800-2025) looked like in numbers, from outside sources rather than encyclopedia prose: world population, U.S. CPI and what a dget_leaders — Who led a country (or every country) in a year, 1800-2025: heads of state, heads of government and ruling-party leaders, in the order they hget_number_one_song — The Billboard Hot 100 No. 1 single on a given date (1958-08-04 onward): the first chart issue dated on or after that day, quoted from a citeconvert_dollars — Inflation-adjust U.S. dollars between years with the BLS CPI-U (1913 onward). Omit to_year for the latest published month.get_world_on_date — The world on one date in a single answer: the dated entries for that exact day, births and deaths that day, every state's office holders thacheck_claim — Check one dated sentence against the record before stating it. Leaders, Billboard No. 1 singles and Nobel Prizes get a structured check thatget_nobel_prizes — Nobel laureates for a year (1901 on) or for a category across years, from the Nobel Prize API and kept only where Wikidata records the same get_official_series — Official data series by year from the agencies that publish them, each cross-checked against a second copy: U.S. unemployment, federal fundsget_disagreements — Where two sources slashyear checks against each other disagree: leaders' terms (Wikipedia lists vs Wikidata), birth and death dates (Wikipedlist_countries — Browse the countries that have a record of their own, largest first.list_subjects — Browse the subjects that have a timeline, largest record first.Not tested by KitScout yet. When our harness runs it, pros, cons and the tasks we tried appear here, with the date and evidence.