Swedish king Gustav II Adolf founds the…
1631 CE
Swedish king Gustav II Adolf founds the Revalsche Gymnasium or Gymnasium Revaliense (Gymnasium of Reval) in Tallinn, Estonia, in 1631.
Today known as the Gustav Adolf Lyceum or Gustav Adolf Gymnasium (Estonian: Tallinna Gustav Adolfi Gümnaasium), it is one of the oldest extant secondary schools in Europe.