1904

Events

• The distress signal "CQD" is established, only to be replaced 2 years later by "SOS."
• The Great Western Railway of England's 3700 Class 3440, "City of Truro" becomes the first railway locomotive to exceed 100 miles per hour (160 km/h).
• Charles Dillon Perrine discovers Jupiter's largest irregular satellite, Himalia.

1903

[[20th Century]] 1900s

1905