Answer: bomb, cannon, bulldozer, and breaking a dam releasing a tsunami...
Explanation: the bomb: blowup the castle, the cannon: slowly destroy it with a hurdling pieces of concrete, the bulldozer: knocking it down, and the tsunami: floods the entire castle and breaking down most of it.
Answer:
1901
Explanation:
The Spindletop oilfield, discovered on a salt dome formation south of Beaumont in eastern Jefferson County on January 10, 1901, marked the birth of the modern petroleum industry.
Emperor Romulus Augustus was deposed by the Germanic King Odoacer if I remember correctly.