Toronto International Film Festival Opens

About This Puzzle

On 1 September 2026, Elementle players around the world were challenged to identify the exact date of this historical event. Part of our Travel & Culture category, this puzzle is one of hundreds of daily challenges drawn from across the full breadth of human history — from ancient civilisations to the modern era.

This event took place in the 20th century. Elementle’s archive spans a wide range of significant milestones in science, politics, exploration, culture, sport, and society. Every puzzle is carefully researched and verified for historical accuracy before being published as the daily challenge.

Could you have guessed the exact date? The challenge is to pinpoint not just the year, but the precise day and month — using colour-coded digit hints to guide your reasoning with each attempt.

How to Play Elementle

Elementle is a free daily history puzzle. Each day, a new historical event is revealed and your challenge is to deduce the exact date it occurred — year, month, and day — in five guesses or fewer. After each guess, colour-coded hints show whether each digit of your answer is correct, too high, too low, or present but in the wrong position within the date.

A new Global puzzle is published every day at midnight. Signed-in players can also unlock a personalised puzzle tailored to their own country and region. Play for free in your browser at elementle.tech, or download the free app for iOS and Android to keep your streak alive on the go and compete in private leagues with friends.

Browse the Archive

This puzzle was part of Elementle’s ongoing daily series. Each entry in the archive captures a verified historical event that appeared as the Global challenge on that date. Navigate between consecutive puzzles below, or return to the homepage to play the latest challenge.