I assume you mean what challenges after they gained independence. They had many internal conflicts. This included fighting about religion. There were also natural disasters. There was the problem of transitioning directly from a dictatorship to a democracy.
Answer: Which neighboring city-state conquered the Mayas
Explanation:
John White maybe not for sure ......Have a good day
Napoleon replaced existing Monarchs with members of his own family. His aim was to replace existing empire with one of his, which would have made him and his family rule wholly. Resistance to to French occupation and French puppet rulers was often based on nationalist sentiments, but it's doubtful whether it would have remained a popular cause with the masses after Napoleon's final defeat.
The first rocket in space was a turning point in history because it inspired the space race, made the United States aware of the possibility of Russia creating rockets to deliver nuclear weapons, and created a reform in education.