All completed dossiers
Revealed daily file

Dossier №301

Wednesday, October 28, 2026

  1. 01

    1,979 AD

    Margaret Thatcher becomes prime minister after the Conservatives win Britain's general election.

    This question uses 1979 AD as its sourced chronological anchor.

    She was the first woman to hold the office of British prime minister.

  2. 02

    2,011 AD

    Southern Sudan votes overwhelmingly to separate from Sudan in an independence referendum.

    This question uses 2011 AD as its sourced chronological anchor.

    The January vote preceded the new country's formal independence in July.

  3. 03

    1,862 AD

    Victor Hugo's novel Les Misérables is first published.

    This question uses 1862 AD as its sourced chronological anchor.

    Its intertwined stories explore poverty, punishment, mercy, and political upheaval in France.

  4. 04

    1,377 AD

    Ibn Khaldun writes the Muqaddimah as an introduction to his larger history.

    This question uses 1377 AD as its sourced chronological anchor.

    The work examines how societies, power, and economic life shape historical change.

  5. 05

    1,980 AD

    Zimbabwe gains internationally recognized independence under majority rule.

    This question uses 1980 AD as its sourced chronological anchor.

    The transition followed the Lancaster House settlement and a brief return to direct British administration.