What came first?

or...

The nothing?

I am now going to make a joke about your typo...


Roster definition: A lista o plan mostrando turns of duty o leave for individuals o groups in an organization: "next week's duty roster"


Rooster definition: A male domestic fowl; a cock.

Now tu know.

The chicken, the roster was invented much later when people began to keep track of things.

Desu.

Pfft, so obvious.

Both, because a rooster is a male chicken.

PFFFT,

me.