During WW1 (and WW2 to a degree), most young men were often drafted into the military to fight, while most young women worked in factories to produce materiel for the war effort.
The Pyramid of Djoser is the first Egyptian pyramid and despite claims of older pyramids being found in recent years, it is the oldest confirmed pyramid in the world.
The admission of new states
The principle that is shared amongst the the teachings of Islam, Judaism, and Christianity is that A. the soul will be judged upon death.
When a person dies, he or she will be judged based on what they did when they were alive and how they behaved. This is something that all of these religions believe in.
Indentured Servants. These were people who worked for a certain number of years to pay for their voyage to America.