From the website:
‘Every day, all over the world, ordinary people must flee their homes for fear of death or persecution. Many leave without notice, taking only what they can carry. Many will never return. They cross oceans and minefields, they risk their lives and their futures. When they cross international borders they are called refugees.
The Refugee Project is an interactive map of refugee migrations around the world in each year since 1975. UN data is complemented by original histories of the major refugee crises of the last four decades, situated in their individual contexts.’
http://www.therefugeeproject.org/