T For Faking a Foul

[PG_Ref]

Originally Posted by Spence

Can someone educate me on the history of what we often hear regarding calling a T if a defender fakes/flops.

Was it ever clearly spelled out that that specific action was a T?

See 10-3-6f

ART. 6

A player shall not:

Commit an unsporting foul. This includes, but is not limited to, acts or conduct such as:

f. Faking being fouled, knowingly attempting a free throw or accepting a foul to which the player was not entitled.