not in any order, more to follow will not limit to ten
1. Battle of the Delta-1178 BC between ancient Egypt and the Sea Peoples. First major naval battle, showed usefulness of ships in military combat
2. Trojan War- 12th century BC A war happened at this time though it was most likely not for the reasons the Iliad gave. The effect of this war was to unite the Greek people who had previously considered themselves Mycenaeans, Dorians, Ithakans, and other tribal identities into Hellenes, a single society. This society was the basis for much of western society
3. Expulsion of Tarquinius Superbus- 507 B.C This was the first time a king had been overthrown and replaced with something resembling a democracy. It also resulted in the founding of the Roman Republic, a form of government that is the basis of much of western society
4. Reforms of Solon- 6th and 7th century BC Birth of true democracy in Athens, all citizens (granted that that was a very limited class) could chose officials and those officials were accountable to them
5. Secessio Plebis-494 BC When the lower class plebs in Rome left the city and forced the patricians to create the position of tribune to protect their rights. Early and very effective example of strike/nonviolent protest
6. Proscription of 82- Sulla makes history by being the first in Roman history to deem his personal enemies "enemies of the state". Early non royal totalitarianism
7.Sulla's first Civil War- 88 BC. Sulla is first roman general to attack rome itself, proof that if you have a big enough army you can do whatever you want

8. Battle of Actium- 31 BC Augustus becomes first emperor of Rome yet using political power is able to appear as if he did not actually sieze power. Proof that perception and not reality is essential in acquiring political power, spawned use of the poets Ovid, Virgil, and Horace as propaganda. Not the first use of propaganda but effective nonetheless and memorable
9. Jesus- Christianity, regardless of whether it is legit or not is one of the most influential belief systems, causing crusades, the european christian identity, Roman catholic church, protestant reformation, the list goes on and on (Mohammed makes this list but the reasons are so similar im not writing it)
10. Christopher Columbus "discovers" america. While he was not the first to get there and he did nothing good while he was there, no one can deny that by making travel to the new world desirable, he had a massive effect on history