Approximately what year was the wheel invented according to evidence provided by Engineering history?

What is the most likely cause of the damage on the Egyptians pyramids and the Sphinx?

The oldest structure known to humanity is called the Anu Ziggurat. What year was it built?

The oldest, most well-preserved structure known to humanity is called the Ziggurat of Ur. What year was it built?

Where is the Anu Ziggurat located?

Where is the Ziggurat of Ur located?

This civilization got the world "rolling" by inventing the first wheel?

Guess when humans first rolled into the future by inventing the wheel? It's way back!

Guess what? The earliest wheels weren't used for zooming around. What was their primary purpose?

Which theme in history is best represented by the invention of the wheel?

When was the Roman Empire in its height of power and development?

Who gave us the first roads, bridges, and public water works?

When did the Industrial Revolution begin?

When did the "United States of America" experience its birth by signing the Declaration of Independence?

When was electricity "invented" thus making it widely accessible to common people?

What year did the first man land on the moon?

Who build the first car?

When did the first airplane take flight?

The Wright Brothers took flight when?

Which ancient civilization is known for building the pyramids?

Who is credited with the invention of the printing press?

What was the very first book ever printed on the Printing Press in the 1450s?