Today was just the first time that all of these people came out and discovered each other's existence.

The world at large is about to discover their existence.

In time, Richard discovered the existence of two half siblings.

She knew very well how the Klan had discovered its existence.

We have discovered the existence of what is demonstrably a city.

Town officials and residents discovered its existence in November 2000, even though it had been sitting there for decades.

Morton and his team had discovered the existence of this illness only a few weeks earlier.

Now it's 1992, and several competing forces discover the existence of the documents.

In 1936 the two groups discovered each other's existence.

God alone knew how anyone had discovered its existence.