1922 - Astronomical Observatory of University of Latvia was founded

1957 - First satellite observations in Riga, Astronomical Observatory University of Latvia

1957 - First observatory building near Baldone, one year later becomes Astrophysical observatory

1966 - 1.2 meter “Carl Zeiss Jena” Schmidt telescope installed at Baldone observatory

1987 - Regular satellite laser ranging measurements starts in Riga

1997 - Astronomical Institute of University of Latvia was founded by merging Astronomical Observatory of University of Latvia and Baldone’s Astrophysics Observatory of Latvian Academy of Sciences