Historical Events on October 5

17 significant historical events occurred on October 5. On October 5, several notable historical events have occurred, ranging from the American frontier era to modern international relations. On this date in 1892, the infamous Dalton Gang met its end. In 1910, Portugal's republican revolution overthrew the monarchy. In 1961, the Apostille Convention was signed, simplifying international document authentication. Additionally, October 5 marks the United States Grand Prix Formula One races held in 1969 and 1975.