What is the purpose of the phrase "secure the Blessings of Liberty to ourselves and our Posterity" in the Preamble to the U. S. Constitution?

At the time if the glorious revolution and the writing if the english bill of rights, americans

Who was the leader of the black nationalists in the 1920s?

Determine whether the following descriptions belong to michelangelo, raphael, or both. important works include school of athens was a renowned artist of the italian renaissance served under the patronage of pope leo x important works include the sculpture la pieta