1) The word "guitar" contains three vowels: U, A, and I.

2) The average person spends around six months of their lifetime waiting for red lights to turn green.

3) The first commercial mobile phone, the Motorola DynaTAC 8000X, was released in 1983 and weighed nearly 2 pounds.

4) The Treaty of Tordesillas, signed in 1494, divided the newly discovered lands outside of Europe between Spain and Portugal, leading to the colonization of the Americas.