Movie Puzzle Crossword

According to Mac, what was the decisive battle that effectively won the Second World War? (1)
Who is, arguably, the most famous British pirate in history? (2)
What gas was used in the trenches of the First World War? (1)
Atomic bombs were dropped on two cities in 1945, Hiroshima and? (1)
New York City was originally named what by the Dutch? (2)
What first name did 3 of Henry VIII wives share? (1)
Which European country gave women the right to vote? (1)
Which city was built on 7 hills? (1)
Who were the first persons to speak the Greek language, perishing in the 1200s BC? (1)
Which US president was the first to live in the White House? (2)
Which country committed atrocities in the Congo? (1)
What bad person (bias maybe) sent over 16'000 Canadians to their death at the Battle of Passchendaele? (2)
What city is known for the Bosnian Genocide? (1)
What do historians refer to as the period that divided the African continent amongst European Empires? (4)
Which revolutionary pill was created in 1950? (2)
Which island was Napoleon born in 1769? (1)
Who was Rome fighting in the Punic Wars? (1)
Who masterminded the Cambodian Genocide? (2)
What natural disaster nearly destroyed an entire American city in 1906? (3)
Which volcano famous covered Pompeii in ash in the year 79? (2)