Identical beliefs appeared simultaneously in all parts of the world.

This is possible because the two terms do not appear simultaneously in the same equation.

Her English translation of the book appeared simultaneously and remains standard.

In some sense we can say that insurance appears simultaneously with the appearance of human society.

She does not appear under these two conditions simultaneously, except at long intervals of time.

So the scientists are looking for signs that appear simultaneously over a wide area.

From 2000 to 2007 (and again briefly in 2009), she appeared on both series simultaneously.

Ideas whose time has come sometimes appear in different countries simultaneously.

He is the only athlete to simultaneously appear in both the 100m and 400m top lists.

From 1993 to 2000, she appeared on both series simultaneously.