Wikipedia:Selected anniversaries/July 25
July 25: Feast day of Saint James the Great
- 306 – Constantine I was proclaimed Roman emperor by his troops.
- 1261 – The Latin Empire ended when Michael VIII Palaeologus and his Nicaean forces captured Constantinople to re-establish the Byzantine Empire.
- 1909 – French aviator Louis Blériot made the first crossing of the English Channel in a heavier-than-air flying machine.
- 1978 – Louise Brown, the world's first test-tube baby, was born in Oldham, England.
- 2000 – Air France Concorde Flight 4590 crashed after takeoff in Paris, killing 113 people.