Sentence examples for about fifty years from inspiring English sources

Since digital data can be very quickly and easily duplicated, intellectual property right protection techniques have become important and first appeared about fifty years ago (see [I.J. Cox, M.L. Miller, The First 50 Years of Electronic Watermarking, EURASIP J. Appl. Signal Process. 2 (2002) 126 132. [52]] for an extended review).

We're talking about fifty years ago".

He spent, with minor interruptions, about fifty years in Belgrade.

The audience, about fifty years younger on average than the usual opera crowd, loved it".

At that speed, a telescope could travel the required seventy billion miles in about fifty years.

Its protagonist, Thierry Taugourdeau (Lindon), seemingly about fifty years old, has been without work for fifteen months.

It took about six years.

And that took about three years.

About five years ago.

Bob: About five years.

Woman: About four years.