Q.How Long Did It Take to Build the Great Pyramid?

A.It is believed the Great Pyramid of Giza(aka Pyramid of Khufu) was built over a 14 to 20 year period, finishing at around 2560 BC for Fourth dynasty Egyptian King Khufu. At that speed, they would had to have moved more than 800 tons of stone every day on average, and even more if it took only 14 years. All without the benefit of modern technology to do the work.

And I used to think I had it bad when we were the only house on the block with a push mower.