The Grand Canal was a technology and public project under Yangdi that helped unite China, but it should be noted that there were other things as well.
In the War of the Austrian Succession, King George II, at the battle of Dettingen, become the last British monarch to personally lead his troops into battle.
The Battle of Dettingen was fought in the year 1743 during the ongoing War of the Austrian Succession also called king George's II war and this war lasted between 1740-48.
In 1743, King George II took part in the battle of Dettingen and formulated a historical moment by becoming the 1st British monarch who led his army to the battle and fought along with his soldiers against French Army.
In this war, British forces made an alliance with Austria and Hanover to fight against French forces.
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Theodore Roosevelt was born on October 27, 1858, into a wealthy family in New York City. Known as “Teedie”–later “Teddy”–he was frail and sickly as a boy, and as a teenager followed a program of gymnastics and weightlifting to build up his strength.
Answer:
Without natural disasters, our world wouldn't change the way that it needs to change. Due to different things that collide or separate, it causes the atmosphere to react, causing natural disasters.
don't know if that makes sense, sorry. hope this helps :)