Should history lessons be uncomfortable? Historian David Olusoga is telling a new story about the history of the United Kingdom.
The historian who wants to rewrite the story

Glossary
Nigeria - A country in western Africa. More people live in Nigeria than in any other country in Africa.
Racism - Prejudice or discrimination due to a person's race or ethnicity.
University - When people leave school, they can go to university to study more and get a degree.
Identity - The qualities, beliefs, personality traits, memberships of social, religious or cultural groups that make a person who they are.
Roman - Lasting from 27BC to 476AD, the Roman Empire controlled regions around the Mediterranean in Europe, North Africa and Western Asia.
Slave - Somebody who is forced to work without pay and cannot leave.
Terrible - Very bad.
Focus - Think about one thing clearly.