The Fact of the Matter was created in 1892.
Law of Conservation of Mass
Conservation of matter.
In a matter of fact, yes.
While taking an oral survey John replied " I am a democrat" as a matter of fact.
"I love cats, and as-a-matter-of-fact they love me too!" is a sentence with those words.
As a matter of fact, by the time it was created it had just rules. It attended every citizen in Babylon including the slaves.
Law of conservation of energy
Simple. It always was. Time begins when matter began, so, simply put, it's always existed.
Matter can't be created or destroyed.
Hacking Matter was created in 2003.
A Matter of Dignity was created in 1957.
Grave Matter was created in 2000.