This is considered as the "official beginning of a new era".

This marked the official beginning of the band's career.

THE official beginning of spring is a week away.

The official beginning of the church is in June 9, 1984.

This marks the official beginning of American involvement in the war as recognized by the memorial.

The official beginning of the denomination is in 1879.

This marked the official beginning of the university as it is today.

The ambush on our car marked the official beginning of the revolution.

"It's the official beginning of the golf season and everybody is glad to see everybody."

This day was about to have its official beginning.