Where Were Numbers First Used?
The earliest written numbers we know of were used in Egypt and Mesopotamia about 5,000 years ago. At first men reckoned by chipping notches…
Tag
Counting
Why the Years in the 2000s Are Called the 21st Century?
Why the Years in the 2000s Are Called the 21st Century? It appears that we are a century ahead of our calendar because we refer to the years