Math

Hi!
Today I did Adding and Subtracting Mixed Numbers.

 I learned that Newton's First Law of Motion is An object that is free of external forces moves at a constant velocity on  How Things Work.

And I learned  that the Universe is getting bigger over time and the Universe used to be small.

I learned while i read The Story of the World that one day Muhammad had a headache and then he lie down and never got up. He was dead.  Who will rule Medina now?  The people of Medina chose Muhammad's friend Abu Bakr  to be the leader or Caliph.