“Yesterday, December 7, 1941—a date which will live in infamy—the United States of America was suddenly and deliberately attacke
d by naval and air forces of the empire of Japan…No matter how long it may take us to overcome this premeditated [planned] invasion, the American people in their righteous might will win through to absolute victory.” —Speech by President Franklin D. Roosevelt, December 8, 1941
It is a primary source, because it is coming straight from the person who said it. If it was from a person listening, it would be a secondary source. An artifact is something physical, that you can hold, like a dinosuar bone.