It is used traditionally to announce the start of a performance, play or magic.

However, Bannor had not come to announce the start of the war.

From this office, nearly three years ago, I announced the start of military operations in Iraq.

When the network announced the start of season two, the episode was not finished.

They announced the start of a door-to-door drive for the measure.

The opposition announced the start of a national disobedience campaign.

On October 13 the show announced the start of production for the season.

Did you see Bush's speech last night, announcing the start of hostilities?

A senior administration official said the White House did not plan to announce the start of the system.

The ioquake3 developers at icculus.org announced the start of respective engine projects soon after.