The answer is going to be , Standardized
England, France, The United States, and Russia.
That the Schlieffen plan failed, The French were unable to defeat the Germans completely at the Battle of the Marne.
Christopher Columbus thought he could reach Asia
There were many such things, for example, systematic racism. African-Americans were still living in poverty or didn't have civil rights and segregation was strong. They could only join white communities if they were musicians or things like that where they would have to play for white guests of parlors. It wasn't until the 60s that the African-American people were given their civil rights.
