What Happened on September 30?

September 30 is International Translation Day — honoring language bridges worldwide — on the same date Babe Ruth hit his 60th home run in 1927, Mozart's Magic Flute premiered in 1791, and Hoover Dam was dedicated in 1935.

• 1399 — Henry Bolingbroke becomes King Henry IV of England

  On September 30, 1399, Henry Bolingbroke claimed the English throne as Henry IV after Richard II's abdication. Read the full story →

• 1791 — Mozart's opera The Magic Flute premieres in Vienna

  On September 30, 1791, Wolfgang Amadeus Mozart's The Magic Flute opened in Vienna — weeks before the composer's death. Read the full story →

• 1927 — Babe Ruth hits his 60th home run of the season

  On September 30, 1927, Babe Ruth hit his 60th home run — setting a single-season record that stood for 34 years. Read the full story →

• 1935 — President Roosevelt dedicates Hoover Dam

  On September 30, 1935, President Franklin D. Roosevelt dedicated Hoover Dam on the Colorado River. Read the full story →

• 1947 — Pakistan is admitted to the United Nations

  On September 30, 1947, Pakistan became a member of the United Nations months after independence. Read the full story →

Famous birthdays

Elie Wiesel (1928–2016) · Truman Capote (1924–1984) · Marion Cotillard (1975) · Martina Hingis (1980)

Days & observances

International Translation Day · National Chewing Gum Day · National Hot Mulled Cider Day · Independence Day (Botswana)