Final answer:
Baptist is one denomination of Protestantism, which is one of the largest in the United States, born out of the Protestant Reformation in the 16th century.
Step-by-step explanation:
One denomination/type of Protestantism is Baptist. Protestantism has various denominations, and Baptists are one of the largest in the United States. Denominations like the Baptists originated from groups that protested against their parent churches, leading to the term 'Protestant'. Other examples of Protestant denominations include Methodists, Lutherans, Presbyterians, and Episcopalians, each with unique beliefs and practices but all under the umbrella of Protestantism, which emerged from the Protestant Reformation in the 16th century.