Continents were in different locations in the past and thus have moved (drifted) to their present location.
Wegener - Published controversal book on this theory in 1915.
Answer:
1. Congress approves the Gadsden Purchase: 1854
2. Horde of miners came to California: 1849
3. Admission of California as a state: 1850
4. Treaty of Guadalupe Hidalgo: 1848
Cyber war is where someone uses computars to disrupt the activities of an enemy country!!! Hope this helps
