Fatto generale: 158 is days it took for the Surprize ship that set sail from England on January 19, 1790, to make port in Port Jackson, Sydney, Australia on June 26, 158 days later.
Fatto matematico: 158 is the number of planar partitions of 11.
Trivia: 158 is the number of episdoes the TV series The Dick Van Dyke Show ran on CBS from 1961 to 1966 with 158 episodes.
Data storica: June 6th is the day in 1644 that the Qing Dynasty Manchu forces led by the Shunzhi Emperor capture Beijing during the collapse of the Ming Dynasty.