Final answer:
The Boston Celtics, originally known as the New York Celtics, were formed in the year 1946 and are a professional basketball team based in Boston, Massachusetts.
Step-by-step explanation:
The Boston Celtics, originally known as the New York Celtics, were formed in the year 1946. They are a professional basketball team based in Boston, Massachusetts. The team has a rich history and has won numerous championships in the National Basketball Association (NBA).