August 4, 2013: inventory list updated; 'recent acquisitions' page added; item descriptions added and corrected. GIF-animations and some movie formats don't work on the iPad: this problem is under investigation.
August 8, 2014: website moved to new server. Logo changed.
January 22, 2015: website search element temporarily removed.
October 17, 2015: website search element replaced.
November 22, 2015: videos in ogv format added for improved browser compatibility.
September, 2016: CSS3 modal window elements; inventory list split up.
January, 2017: interactive Algol mark sense card reintroduced.
April, 2017: spring cleaning; flexowriter and basicode materials added.