) 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.
Confidence votes 3.8K. because people believed that the world was flat and he wanted to see if that was true Answer. The above answer is incorrect. By the time of Francis Drake (1540-1596) Christiopher Columbus (1451-1506) had already discovered the Americas and Vasco da Gama (1469-1524) had sailed around the world. People already knew the world was not flat.