The ships in Columbus's fleet included all of the following except: the Mayflower
the Santa Maria
the Niña

The Mayflower.

Explanation:

Columbus's fleet comprised of 3 ships: The Santa Maria (the largest and the flagship), the Niña, and the Pinta. On return, Columbus had only the Niña and the Pinta, as Santa Maria sunk.

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first second and third

explanation:

the group i'm selecting: greeks.

a first group of greek immigrants came to the us in the 1850s. the second group came to america starting in the 1890s due to economic opportunities they didn't have back in their home caused by the hardships of ottoman rule. greek immigration was 90% male, many of them expected to work and return to greece after earning enough capital, but ultimately had to remain in the us after the greek genocide.