On This Day

What Happened on September 21, 2017

Historical Events

  • Andre Ward, unified light heavyweight champion and world’s top pound-for-pound boxer, announces his retirement

Brainless Jellyfish that Sleeps

Discovery of the first brainless animal that sleeps, the jellyfish Cassiopea, research published in "Current Biology" by Caltech scientists

Famous Deaths

  • Liliane de Bettencourt, French heir to L'Oreal and richest woman in the world from 2016, dies at 94
2017 Highlights

About September 21, 2017

Day of the Week: Thursday
How Long Ago? 4 years, 2 months and 14 days
Leap Year: No

Generation: Generation Z
Chinese Zodiac: Rooster
Star Sign: Virgo