A storage silo in Oppau, Germany, explodes, killing 500–600 people. Date: September 21, 1921 Read more on Wikipedia → 📅 Other events on September 21 📅 Events on this day in 1921 📅 On This Day (Today)

Salvador Lutteroth establishes Mexican professional wrestling. Date: September 21, 1933 Read more on Wikipedia → 📅 Other events on September 21 📅 Events on this day in 1933 📅 On This Day (Today)

A large typhoon hits western Honshū, Japan, killing more than 3,000 people. Date: September 21, 1934 Read more on Wikipedia → 📅 Other events on September 21 📅 Events on this day in 1934 📅 On This Day (Today)

J.R.R. Tolkien's The Hobbit is published for the first time. (September 22 is celebrated by some fans as Hobbit Day, however.) Date: September 21, 1937 Read more on Wikipedia → 📅 Other events on September 21 📅 Events on this day in 1937 📅 On This Day (Today)

The Great Hurricane of 1938 makes landfall on Long Island in New York. The death toll is estimated at 500–700 people. Date: September 21, 1938 Read more on Wikipedia → 📅 Other events on September 21 📅 Events on this day in 1938 📅 On This Day (Today)

Romanian prime minister Armand Călinescu is assassinated by the Iron Guard. Date: September 21, 1939 Read more on Wikipedia → 📅 Other events on September 21 📅 Events on this day in 1939 📅 On This Day (Today)

The Boeing B-29 Superfortress makes its maiden flight. Date: September 21, 1942 Read more on Wikipedia → 📅 Other events on September 21 📅 Events on this day in 1942 📅 On This Day (Today)

The Holocaust in Poland: At the end of Yom Kippur, Germans order Jews to permanently move from Konstantynów to Biała Podlaska. Date: September 21, 1942 Read more on Wikipedia → 📅 Other events on September 21 📅 Events on this day in 1942 📅 On This Day (Today)

The Holocaust in Ukraine: In Dunaivtsi, Ukraine, Nazis murder 2,588 Jews. Date: September 21, 1942 Read more on Wikipedia → 📅 Other events on September 21 📅 Events on this day in 1942 📅 On This Day (Today)

The Holocaust in Ukraine: On the Jewish holiday of Yom Kippur, Nazis send over 1,000 Jews of Pidhaitsi to Bełżec extermination camp. Date: September 21, 1942 Read more on Wikipedia → 📅 Other events on September 21 📅 Events on this day in 1942 📅 On This Day (Today)