All completed dossiers
Revealed daily file

Dossier №274

Thursday, October 1, 2026

  1. 01

    1,954 AD

    Roger Bannister runs the first officially recorded mile in less than four minutes.

    This question uses 1954 AD as its sourced chronological anchor.

    At Oxford's Iffley Road track, Bannister finished in three minutes and 59.4 seconds.

  2. 02

    1,994 AD

    The North American Free Trade Agreement takes effect.

    This question uses 1994 AD as its sourced chronological anchor.

    The agreement linked the economies of Canada, Mexico and the United States through a regional trading arrangement.

  3. 03

    1,956 AD

    Soviet forces suppress Hungary's uprising against communist rule.

    This question uses 1956 AD as its sourced chronological anchor.

    The revolution challenged Soviet control and was defeated after fighting that sent many Hungarians into exile.

  4. 04

    1,512 AD

    Michelangelo completes his frescoes on the Sistine Chapel ceiling.

    This question uses 1512 AD as its sourced chronological anchor.

    The frescoes depict scenes from Genesis alongside prophets, sibyls, and other figures.

  5. 05

    286 AD

    Maximian becomes Augustus alongside Diocletian, sharing rule of the Roman Empire.

    This question uses 286 AD as its sourced chronological anchor.

    Maximian governed in the west while Diocletian remained the senior ruler in the east; the four-emperor system followed later.