What did Kathrine G Johnson do?

Are there any reasons for inventing the light bulb in 1879? What type of currency is mainly used in Europe? Were the Minoans peaceful people? What was the suffragists aim? Which Army Regulation covers The Army Privacy Program? What do people benefit from citihood? What is description of heorot? What was the result of the First Continental Congress? What battle contributed to General Grant and Union troops taking control of the entire Mississippi River'? Why did soldiers of both sides of the civil war choose to fight? A flag made up of three colors? Why was Charles sentenced to death? What countries were in the British empire in 1900? Why is S Korea and N Korea separated? A ditch from where soldiers fight battles is a? What important standards of law were set up by the Romans? Is it true that the word holocaust means sacred cause? Congress passed the Reciprocal Trade Agreements Act in 1934 authorizing the president to reduce what by as much as 50 percent if they were found to be hindering American trade? What Native American tribe fought with the British during the revolutionary war? What is crip-walking?