This action also marked the first use of the new R4M rockets.

The test is a success, and the flight marks the first use of a modern American aviation oxygen mask.

There is no purely linguistic way of generally marking the intended use.

This marked the first use of railroads for troop movement in a war.

September 5 marked the first use of the forward pass in a college football game.

The game marks the first use of the penalty flag in American football.

The battle also marked the first use of chlorine bombs by insurgents during the war.

The undertaking marked the first commercial use of electricity.

This marked the first use of the Battlestrike brand in a domestic release.

This marked the first use of racial quotas in the federal government.