) After existing for 163 million years, the dinosaurs disappeared at the end of the Cretaceous Period, 66 million years ago. The Earth's appearance during the Mesozoic Era was quite different from its appearance today.The reason for the difference is that although the surface of our Earth seems rock solid, it is not. After existing for 163 million years, the dinosaurs disappeared at the end of the Cretaceous Period, 66 million years ago. The Earth's appearance during the Mesozoic Era was quite different from its appearance today.
When The World Was Black: The Untold History Of The Worldâs First Civilizations, Part One: Prehistoric Cultures (When The World Was Black: The Untold History Of The Worldâs First Civilizations #1) âIn this book, youâll learn about the history of Black people.
Analysis of Wangero Leewanika Kemanjo (Dee) in Everyday Use What made the Black Power movement of the 1960s and 70s such a powerful force, and why did it start in the first place? Author Russell Rickford explains in We Are an African People: Independent Education, Black Power, and the Radical Imagination, what Pan-Africanism means.