Who were the people who traveled to America in 1620?

Analysis:

The text mentions, "A group of people decided to leave England and go to live in America." Later, it says, "The first winter in America was very hard for the travellers, the Pilgrims as they were called." This clarifies that the travelers were known as the Pilgrims.

The people who traveled to America in 1620 were the Pilgrims.