Which of these items is a primary source?

A website about the history of famous battles.

A history class lecture about a war.

A biography of a general written last year.

Which statement best describes a primary source?

A book written many years after an event happened.

An original record from someone who was there to see an event.

A documentary movie about a historical person.

A teacher's lesson about the past.

A secondary source, which uses primary sources to tell a story about the past.