Explosive boats before the attack on USS Cole

Have explosive-boat attacks been possible since the attack on USS Cole?

The concept is much older, with Japanese and Italian boats and other small attack craft used during the Second World War.

The attack on Cole does not establish the beginning of this kind of threat. Japanese and Italian wartime craft provide older examples. X-craft and human-guided torpedoes also belong to the discussion of small craft approaching a target with explosives. The underlying idea of a small explosive attack platform has a long history.