The site of the museums belonged to the Topkapı Palace outer gardens. The museum was founded by decree as the Imperial Museum ( or ) in 1891. The first curator and founder of the museum was Osman Hamdi Bey. Since an imperial decree protecting cultural goods in the Ottoman Empire was enforced, many governors from the provinces would send in found artefacts to the capital city. In that way the museum was able to amass a great collection. Upon its 100th anniversary in 1991, the museum received the European Council Museum Award, particularly for the renovations made to the lower floor halls in the main building and the new displays in the other buildings.