Original sentence: In Babylonian and Sumerian mythology, Tiamat is the sea who gives birth to the first generation of gods.The depiction of Tiamat as a multi-headed dragon was popularized in the 1970s as a fixture of the Dungeons & Dragons roleplaying game thanks to earlier sources associating Tiamat with later mythological characters such as Lotan and others.Though Tiamat is often described by modern authors as a sea serpent or dragon, no ancient texts exist in which there is a clear association with those kind of creatures
Edited sentence: In Babylonian and Sumerian mythology, Tiamat is the sea, personified as a goddess, who gives birth to the first generation of gods.Though Tiamat is most often described by modern authors as a sea serpent or dragon, no ancient texts exist in which there is a clear association with those kind of creatures