The objective of International Museum Day (IMD) is to raise awareness about the fact that, “Museums are an important means of cultural exchange, enrichment of cultures and development of mutual understanding, cooperation and peace among peoples.” Organised on 18 May each year, the IMD was celebrated for the first time 40 years ago. All around the world, more and more museums participate in International Museum Day. Last year, more than 37,000 museums participated in the event in about 158 countries and territories.