Who was the first ruler of ancient Egypt?

Answer Menes, also known as Scorpion and Aha, was the first ruler of ancient Egypt. He ruled sometime between 3100-2850 B.C. Menes unified the lower and upper parts of Egypt into a single kingdom.Source:M... Read More »

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When was the first metric ruler made?

The essentials of what is the metric system were suggested in 1791 in a report to the Paris Academy of Science. The first metric ruler was a platinum bar that was based on this report, which was ma... Read More »

How to Measure With a Ruler for First Grade?

Measurement instruction normally begins in the first grade with an introduction to the ruler. Children often begin the school year beginning to measure using small items, such as paper clips, to me... Read More »

What Is the Difference Between a Regular Ruler & a Metric Ruler?

When you need to measure an object's dimensions, such as a section of cardboard that you want to cut to a specific length and width, you can use a ruler to find its size. If your task requires you ... Read More »

Who first developed the Great Wall of China?

The Great Wall of China started out as a series of separate fortifications built for local protection. Emperor Qin, in 221 B.C.E., is generally credited with the concept of linking these smaller fo... Read More »