John thomas scopes and commonly referred to as the scopes monkey trial, was an American Legal case in July 1925
The system of checks and balances is the American Federal Government's way of ensuring that each branch has its own responsibilities but also has responsibilities, limits, and obligations as it pertains to the other branches of government.
This has worked well for most of the country's history but since the 1930s, the Presidency/Executive branch has become the branch that is possibly more powerful than the rest, especially in the minds of the people.
This is seen in the modern era, with the Presidency leading legislative pushes and leading their parties representatives in the House and Senate.
To fix this, the first step would be for the Senate to regain its authority when it comes to Foreign Affairs. Starting in the 1950s, the Executive branch used legal but suspect schemes to circumvent Congress' singular right to Declare war.
So, for the last 17 years, America has been fighting a war on terrorism without a Congressional declaration of war. The last time Congress declared war was in 1942, so Korea/Vietnam/Gulf War I/etc. were all accomplished without a Congressional declaration.
What we will need to see if Congress stepping up and acting like a co-equal branch of Government, instead of a branch subservient to the interests of the executive branch.
I believe it was guerrilla warfare.
It was the Mamluks. A Mamluk was a soldier who converted to Islam, and over the time that the military used, they became stronger and more powerful military. This was the only way and the only war that the Mongols lost.
Reason #1: Even after the 15th amendment was ratified, some states still found ways to circumvent the Constitution and prevent all African-Americans from voting.
Reason #2: The Supreme Court struck it down in 1915, many states used the "grandfather clause" to keep descendents of slaves out of elections. The clause said you could not vote unless your grandfather had voted -- an impossibility for most people whose ancestors were slaves, African-Americans.
Reason #3: Discrimination practices also prevented African-Americans from voting.