What idea was the conerstone of Barack Obama

The passage of alien and sedition acts led directly to what?

Consider the events in alfred wegener's life that led to his development of the continental drift hypothesis. review the items below and determine whether each item is (1) an observation that led alfred wegener to develop his continental drift hypothesis, or (2) evidence wegener gathered to support his proposal.

Limiting contact with foreigners was the main goal of chinese. true or false