This is a map of slavery incidents and slavery-like events that have occurred throughout the world with a focus on the United States. Click on the markers to read a particular account. Markers with letters on them have multiple accounts for the same city. To see all the markers, you must enlarge the map.. To see different areas, click the map itself, hold, and drag your mouse to move the map. This map was created July 13, 2014. Over the years, events of slavery were added. There are many, many more events of slavery that have not been included on the map as of yet. This map was last updated July 29, 2020.