What is an anachronism?

In the Hebrew Bible, Baal is portrayed as the great rival of Yahweh. In the Book of Kings, the prophet Elijah famously challenges the prophets of Baal to a sacrificial offerings contest that ultimately leads to their doom. John Hamer of Toronto Centre Place will put these Biblical narratives in the context of what is known about Canaanite and Ancient Semitic religion, and the gods worshiped with the honorific title “Ba’al” (which means “Lord”).

[georginashanti]

Thank you, now I don't have to Google it and try hopelessly to ascertain the true meaning in regards to ancient writing.