Event:
Businessman Petro Poroshenko wins the Ukraine's presidential election; election turnout was strong despite the nation's internal conflicts with separatist groups, who kept many voting locations closed in the eastern part of the country
More Notable Events on May 25: 1986 Hands Across America - 6 million people hold hands from California to New York
1962 U.S. unions AFL-CIO starts campaign for 35-hour work week
1961 John F. Kennedy sets goal of putting a man on Moon before the end of decade
1945 Arthur C. Clark proposes relay satellites in geosynchronous orbit
1935 Jesse Owens equals or breaks 6 world records in one hour
