What psychological phenomena come up to the standard required for calling it knowledge?

This phenomenon has come to be known as the deep scattering layer.

The latter phenomenon would not actually come as a surprise to regional economists.

"Any guesses as to how this phenomenon has come about?"

And while you're there, go back to the show's opening gallery for a chronological view of how this phenomenon came to be.

This was my frame of mind when Spiritual phenomena first came before my notice.

This phenomenon later came to be known as the Crack Epidemic.

This phenomenon has come to be widely recognized by climatologists in recent years.

If it is ever found that life can originate on this world, the vital phenomena will come under some general law of nature.

No extraneous phenomena must come out of any new equation.