Answer:
Federal, Local, State
Explanation:
Because there is a the local government, which governs cities, towns, and villages; the state government, which governs states; and the federal government, which governs the entire country.
Hopes this helps you :).
North Vietnam launched an invasion of South Vietnam. ... The attack of two U.S. destroyers by the North Vietnamese.
It shows them that exact year in which certain things happen
Answer: This might not be what you were looking for but this website gives you 4 examples and there's a video to watch.
https://nmliving.com/2016/08/21/legendary-new-mexico-technology/