The Seven Years’ War (1756-1763) was a global conflict that spanned five continents, though it was known in America as the “French and Indian War.” After years of skirmishes between England and France in North America, England officially declared war on France in 1756, setting off what Winston Churchill later called “the first world war.” While the French, British, and Spanish battled over colonies in the New World, Frederick the Great of Prussia faced off against Austria, France, Russia and Sweden. The Seven Year’s War ended with two treaties. The Treaty of Hubertusburg granted Silesia to Prussia and enhanced Frederick the Great’s Power. The Treaty of Paris between France, Spain and Great Britain drew colonial lines largely in favor of the British, an outcome that would later influence the French to intervene in the war for American Independence.
That's all I know about the Seven Years, sorry.
In 1830, Jackson ignored a Supreme Court ruling to sign into law the Indian Removal Act, forcing native people to lands in the West, away from their homes east of the Mississippi river.
The reason: Gold.
Gold had been found on Cherokee land, and Jackson wanted it. The president’s excuse for removal – claiming the Cherokees had violated the constitution by declaring their own state without approval – was a smokescreen.
The native Americans were eventually forced to march 800 miles west. From the 47,000 southeastern Indians that were uprooted, it is estimated that 1 in 4 died from either exhaustion or starvation on what is now called The Trail of Tears. Jackson acquired more than one hundred million acres of land.
The Indian Removal Act was genocide.
Andrew Jackson should not be on the $20 bill I have many more reason but that’s the biggest.