The answer is Seven years war
The paxton boys is a vigilante group that is created in Pennsylvania that is formed to retaliate against local American Indian after the 7 years war.
During the protest, they murdered around 21 tribe members and forced out Benjamin Franklin to hear the issues that they believe in
Saddam hussein would eventually invade saudi Arabia
He urged blacks to accept discrimination for the time being and concentrate on elevating themselves through hard work and material prosperity.
The correct answer is Malaria
Malaria was a huge problem since it couldn't be treated and people mostly died from it. It prevented numerous explorers from venturing into places like Africa where Malaria was running rampant due to the huge amount of mosquitoes. When it was discovered, it enabled numerous people to live at ease because they could not live with the disease or prevent getting it.