Ten million years passed before the first of those changes be- came important.

But the job was given such a low priority that six years passed before planning began.

Four years passed before work was begun on the building.

I won't say 30 years passed as in a dream.

Thirteen years passed before the union was established in 1899.

Another six years passed before the last (46th) volume was published.

Some 60 years passed before the grid arrived at 155th Street.

Five years passed before he was actually cast in the role.

Five years passed before the Indians began to trust him.

Well, five years passed before we got to record our first show.