Final answer:
The sentence can be rewritten to correct capitalization and punctuation errors.
Step-by-step explanation:
The sentence can be rewritten as:
The Pilgrims crossed the Atlantic Ocean and landed in America on December 21, 1620.
In this revised sentence, the proper nouns 'Pilgrims', 'Atlantic Ocean', 'America', and 'December' are capitalized. Additionally, a comma is placed after the word 'America' to separate it from the date 'December 21, 1620'.
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