Water Bodies

The lost rivers of London

London was historically crisscrossed by numerous rivers and streams that played a crucial role in its development and growth. However, as the city expanded, many of rivers were covered, redirected, or built over. It is estimated that there were about 20 significant rivers that have been covered or built over in London.

Read More
Historical Maps

Abolition of Slavery by Country

The abolition of slavery happened at different times in different nations. It often occurred consecutively over one stage–for instance, as the abolition of the trade of enslaved people in a specific country and then as the abolition of slavery throughout empires. Each step was usually the result of a separate law or action.

Read More