Astrology is a useful fiction.

[Delano]

A Myth is something true that never happened.

[Pioneer1]

A "myth" is just an old rumor....lol.

Some are true.
Some are not true.
Some are only partially true.

For example................

They say that Black men having larger penises than other races of men is just a "myth".
But most women who've been with various races of men to compare KNOW that it isn't merely a myth but is actually true.
Most medical professionals also know this is true.