The Hundred Days Offensive Jul–Nov 1918 was the costliest
The Ludendorff offensive other wise known as the spring offensive was a German offensive on the Western Front intended to win the war before the American troops that had begun arriving in France could fully deploy.
I'm unsure of how far they advanced
Kaiserschlacht was the last German offensive and was a series of German attacks along the Western Front.
Simon Bolivar was a revolutionary, born in Venezuela, who liberated 6 countries in northern South America from Spanish forces sent by the then king of Spain, Bolivar traveled to Europe to ask Spain to withdraw its military forces from America, stop repressing the people and taking advantage of their wealth, but they ignored him, then he returned to South America from where he undertook a battle to free the countries, achieving the objetives and winning almost all of the fights.
This impacted the power of the roman catholic church by calling the people to pray, aswell as organizing religious trecks and creating a petition to stop the pestilence
Because there was either less supplies or more supplies where there was trade.
The upheaval was caused by widespread discontent with the French monarchy and the poor economic policies of King Louis XVI, who met his death by guillotine, as did his wife Marie Antoinette