Yes, the Constitution can be changed.
Generally how they change the Constitution is by adding more amendments (usually to override a previous one, as of the examples for slavery and spirits (wine)).
To change, the House of Representatives & Senate must have 2/3 majority votes for the change.
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Although of course there were several early Renaissance thinkers who studied and shared classical literature, perhaps the most well-known would be Francesco Petrarch, who is considered to be the father of "humanism."
Answer:
african Americans were not and would not be citizens
Water vapor freezes into ice crystals that stick together to form flakes !
