They did a trading chain and traded items
Geography: Z<span>ero degrees longitude is known as the Prime Meridian. Hope that helped. :)</span>
1: Battle of Civetot 1096
2:Siege of Antioch 1097
3:Siege of Jerusalem 1099
4: Siege of Lisbon 1147
5:Siege of Damascus 1148
Sorry I don't have enough time to identify the cause events and effects but hopefully this helps you out!
USA was behind in Science and Math. So the federal government dumped massive amounts of money at the high school and college level. Americans so the Cold War heat up in Space. Very far behind.
The first space shuttle had enough capablities to go to Mars.
Mars was the orginal goal!
Moon became the target because USA moved it to so.
Watch Hidden Figures and October Sky for some inspiration.