1918 – Born on the 26th of April in Lage Vuursche (near Baarn) to Arnoldus and Helena Koen.
1935-1936 – Having started competing in athletics, she took part in the Summer Olympics a year later.
1948 – She was a Dutch athlete, best known for winning four gold medals at the Summer Olympics in London.
1951 – Apart from her four Olympic titles, she won five European titles and 58 Dutch championships, and set or tied 12 world records – the last, pentathlon, aged 33.
1955 – She retired from athletics, after which she became leader of the Dutch female track and field team.
1999 – She was voted "Female Athlete of the Century" by the International Association of Athletics Federations (IAAF).
2004 – She died at age 85 in Hoofddorp on the 25th of January.