Which us president signed the law making labor day a national holiday?

What thematic reasons does the book list for european expansion

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.

You are traveling to japan and need japanese yen how much jpy could you get for $200