The Dmanisi museum-reserve presents a medieval town site, archaeological layers of the Late Bronze–Early Iron Age, and the Early Palaeolithic site of Dmanisi. The archaeological study of Dmanisi began in 1936 (led by L. Muskhelishvili and V. Japaridze) and continues to this day. The Dmanisi historical-architectural museum-reserve was founded in 1983 and since 2006 has been part of the Georgian National Museum. It presents the medieval town site and a geological layer dated to 1.8 million years ago.