John Philip Holland is the Irish born inventor of the modern submarine.
A former Christian Brother, he created one of the most formidable weapons of war.
An Irish patriot, whose first working submarines were funded by Irish revolutionaries, he later developed the first US and British submarine fleets.
A self taught genius of the late 19th century, his remarkable invention was seized by US corporate interests, and his personal legacy was undermined and forgotten.
This is the English language version of the documentary Fómhuireáin na bhFíniní.