The major change that happened according to the Pie chart is that between 1850 and 1914, most of Africa was colonized.
What does the Pie chart show?
It shows that in 1850, most of Africa was free of European control but by 1914, most of Africa had been taken over by Europeans.
This means that in the 64 year period between 1850 and 1914, most of Africa was colonized by Europe through various methods and for varying reasons.
Find out more on European colonization at https://brainly.com/question/19482514.
