May 4, 1900 (Friday)
- The United States Senate ratified the 1899 amendment to the Geneva Convention, applying it to naval war.
- Kaiser Wilhelm II pledged 500,000 marks to India for famine relief.
- In Lubbock, Texas, The Avalanche published its first issue as the city's first major newspaper. Through mergers, it eventually became the Lubbock Avalanche-Journal.
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