Answer: Rows of stars (4-5-4 or 3-2-3-2-3) were common, but many other variations also existed. The new Stars and Stripes formed part of the military colours carried on September 11, 1777, at the Battle of the Brandywine, perhaps its first such use. U.S. flag commonly attributed to Betsy Ross The U.S. flag commonly attributed to Betsy Ross. In the context of combinatorial mathematics, stars and bars is a graphical aid for deriving certain combinatorial theorems. It was popularized by William Feller in his classic book on probability. It can be used to solve many simple counting problems, such as how many ways there are to put n indistinguishable balls into k distinguishable bins.
Hope this helps :)
Winston Churchill described communism across Europe as an iron curtain
The statement is incorrect. Martin Luther King Jr was arrested for participating in the Birmingham campaign, among other people. This is when he wrote his famous letter from Birmingham jail. The person who was arrested for refusing to give up their seat was Rosa Parks, and this was in 1955, which is 8 years before the mentioned year.