What issue caused the most serious conflict at the congress of vienna

a. the polish-saxony question
b. the recondition of louis xvii as french monarch
c. the prevention of future french aggression
d. the exile of napoleon to st. helena

In which country did miguel hidalgo led the revolution against spain?

Plz ive been stuck on this question forever. in 1753 george washington was sent on a mission to a. build a fort at the point where the allegheny and monongahela rivers form the ohio river. b. attack the french at fort duquesne. c. attack the french at fort neccessity. d. deliver a message to the french demanding that they leave the ohio river.

Plz the 10 places that charles darwin stopped at to report his findings, and include dates?