The summary is:
The text is a transcript of a video about the events leading up to and following the Battle of Philippi in 42 BCE, where the triumvirs Antony, Lepidus and Octavian defeated the conspirators Brutus and Cassius, who had assassinated Julius Caesar. The text describes how the triumvirs raised money by imposing heavy taxes on Roman citizens and Italian farmers, how the wealthy women of Rome protested under the leadership of Hortensia, how Antony and Cassius were the most experienced generals on each side, how Antony tried to outflank Cassius in the marshes, how Cassius killed himself on his birthday after mistakenly thinking that he had lost the battle, how Brutus won against Octavian but failed to pursue him, how Antony took a strategic hill and cut off Brutus's supply lines, how Brutus attacked again and was defeated, how he escaped into the hills and committed suicide after reciting poetry with his friends, and how Antony was hailed as imperator while Octavian was mocked for being ill. The text ends with a humorous remark about how Octavian sent Brutus's head back to Rome but it was thrown overboard by superstitious sailors.
Here are the key facts extracted from the text:
1. The Senate and people of Rome declared Julius Caesar a god on January 1st of 42 BCE and Marc Antony became his chief priest.
2. The triumvirs (Antony, Lepidus and Octavian) imposed new taxes on Roman citizens, including a one-time levy on the 1400 wealthiest women, to raise money for their war against the conspirators (Brutus, Cassius and others) who assassinated Caesar.
3. The wealthy women of Rome, led by Hortensia, protested against the tax and won a reduction of over 70 percent after a public speech and a brawl in the forum.
4. Brutus and Cassius commanded a massive army of 17 legions in the east, supported by several independent kingdoms and the Parthians.
5. Antony and Octavian crossed the Adriatic Sea with 19 legions to confront Brutus and Cassius near the city of Philippi in Macedonia.
6. The first battle of Philippi on October 3rd was a draw, with Antony defeating Cassius and Brutus defeating Octavian. Cassius committed suicide on his birthday, mistakenly thinking that the battle was lost.
7. The second battle of Philippi on October 23rd was a crushing victory for Antony and Octavian, who broke through Brutus's lines and forced him to retreat and take his own life.
8. Antony was hailed as imperator by the victorious legions, while Octavian was mocked for hiding in his tent due to illness.