The following events occurred in May 1913:
May 30, 1913: Treaty of London splits the Ottoman Empire
May 26, 1913: Igor Sikorsky introduces the first four-engine airplane, the Russky Vityaz bomber
May 30, 1913: Eastern Europe, before and after
May 30, 1913: Jules Goux wins the 3rd Indianapolis 500
The following events occurred in January 1913:
January 9, 1913: Future U.S. President Richard Nixon (2nd from right) born in California
January 23, 1913: Ottoman Empire Navy Minister Nazim assassinated, Prime Minister Kamil overthrown in coup in Turkey
Dutch calendar for January 1913, designed by Theo van Hoytema
Caricature of Lt-Colonel Sir Robert William Inglis, published in Vanity Fair, January 8, 1913, as "Men of the Day" Number 2306