What is rubber? History of rubber
A big rubber tree in Mexico Olmec people, living in southern Mexico, invented rubber about 1600 BC. It was just as they were beginning to build their empire. Rubber starts out as [...]
A big rubber tree in Mexico Olmec people, living in southern Mexico, invented rubber about 1600 BC. It was just as they were beginning to build their empire. Rubber starts out as [...]
A woman with typhus Nobody seems to have caught typhus before about 1450 AD, so the disease probably didn't exist until then. Typhus is an infection caused by tiny germs (bacteria) [...]
A Valentine from Charles, duke of Orleans, to his wife in 1415 AD The Roman Lupercalia The earliest holiday that might conceivably have something to do with Valentine's Day is [...]
A Quaker wedding (1800s in England) In 1648 AD, some people in England felt unhappy with the way Puritan Christians were praying to God. So they started to do things their own way. [...]
World War II Shipyard African-Americans in World War I During World War I, many white men were away being soldiers. Because of the war, no new people came from Europe [...]
Comanche women (1800s) From Shoshone to Comanche Pueblo people captured Spanish horses in the Pueblo Revolt of 1680 AD, and they sold some of those horses to the Shoshone, in what is now Wyoming. [...]
British cannon from the Hundred Years' War (now at Mont St. Michel) Not long before 1500 AD, everything medieval soldiers did in wars suddenly changed. First, Europeans learned how to make and use gunpowder from Central [...]
Jean-Paul Sartre - a French philosopher After World War I, many people in Europe felt that the old world had ended and a new world was beginning. Jean-Paul Sartre grew [...]
Unemployed people in Germany (1930s) Why did World War II start? The Depression left everyone in Europe feeling angry and upset, because so many people were poor. People were especially upset in [...]
Anarchist militia (Barcelona, 1936) Spain after World War I Just as with the Napoleonic Wars, World War I left Spain with the difficult problem of having close relationships with countries on both [...]