Do you want to watch the British Empire fall apart? Of course you do - here's your chance.
Simply scroll backwards and forwards in time or click on the play button in the below map, created by Our World in Data.
The data for the map comes from research published in the American Sociological Review in 2006, called From empire to nation-state: Explaining war in the modern world, 1816-2001.
The research took fixed geographical territories and charted their political and economic development over the best part of two centuries.
As a result, you can see a number of countries and territories, using modern day borders, change hands at the height of colonialism - and the subsequent collapse of empires in the latter half of the 20th century.
You can find the report and linked datasets on the Columbia University wesbite.