Ian CInteresting theory on the steering Oar and it true regarding the origin of Starboard
But when I learn't my seamanship such as it is, it included the following menmonic
"When you see three lights ahead, #
Port your Helm, and show your red *
Green to Green, or Red to Red,
Safty ensures, full steam ahead "# Green, White, and Red signifies a power vessel coming staight at you !
* put your tiller over to the left so that you swing to the right and expose your Red (port-left facing the sharp end) navigation light ie drive on the right.
Of course if you look astern and see Green, White and Red, mun youve got a problem !
Gareth