A savage fire wrecked three steamships docked at a pier in Hoboken, New Jersey. Over 200 crew members and passengers are killed, and hundreds injured. Date: June 30, 1900 Read more on Wikipedia → 📅 Other events on June 30 📅 Events on this day in 1900 📅 On This Day (Today)

Albert Einstein sends the article On the Electrodynamics of Moving Bodies, in which he introduces special relativity, for publication in Annalen der Physik. Date: June 30, 1905 Read more on Wikipedia → 📅 Other events on June 30 📅 Events on this day in 1905 📅 On This Day (Today)

The United States Congress passes the Meat Inspection Act and Pure Food and Drug Act. Date: June 30, 1906 Read more on Wikipedia → 📅 Other events on June 30 📅 Events on this day in 1906 📅 On This Day (Today)

The Tunguska Event, the largest impact event on Earth in human recorded history, resulting in a massive explosion over Eastern Siberia. Date: June 30, 1908 Read more on Wikipedia → 📅 Other events on June 30 📅 Events on this day in 1908 📅 On This Day (Today)

The Regina Cyclone, Canada's deadliest tornado event, kills 28 people in Regina, Saskatchewan. Date: June 30, 1912 Read more on Wikipedia → 📅 Other events on June 30 📅 Events on this day in 1912 📅 On This Day (Today)

World War I: In "the day Sussex died", elements of the Royal Sussex Regiment take heavy casualties in the Battle of the Boar's Head at Richebourg-l'Avoué in France. Date: June 30, 1916 Read more on Wikipedia → 📅 Other events on June 30 📅 Events on this day in 1916 📅 On This Day (Today)

U.S. President Warren G. Harding appoints former President William Howard Taft as Chief Justice of the United States. Date: June 30, 1921 Read more on Wikipedia → 📅 Other events on June 30 📅 Events on this day in 1921 📅 On This Day (Today)

In Washington D.C., U.S. Secretary of State Charles Evans Hughes and Dominican Ambassador Francisco J. Peynado sign the Hughes–Peynado agreement, which ends the United States occupation of the Dominican Republic. Date: June 30, 1922 Read more on Wikipedia → 📅 Other events on June 30 📅 Events on this day in 1922 📅 On This…

The Night of the Long Knives, Adolf Hitler's violent purge of his political rivals in Germany, takes place. Date: June 30, 1934 Read more on Wikipedia → 📅 Other events on June 30 📅 Events on this day in 1934 📅 On This Day (Today)

Emperor Haile Selassie of Abyssinia appeals for aid to the League of Nations against Italy's invasion of his country. Date: June 30, 1936 Read more on Wikipedia → 📅 Other events on June 30 📅 Events on this day in 1936 📅 On This Day (Today)