Amelia Earhart was 39 when she disappeared.
The Bear Flag Revolt was a direct result of a yearning among United States citizens living in California to have their territory join the United States. The appearance in the territory by American army officer John C. Fremont spurred these citizens to rise up against Mexican rule.
Answer:
to amend the Articles of Confederation
The Sparta, Athens, and other Greek communities collected natural resources to build walls to protect them from external attacks. However, they eventually succumbed to attacks via the ocean route.