According to legend, yes it was. The cloak was supposedly given to the third Peverell brother, Ignotus, by Death himself.
As the Peverell's lived in medieval times there is no way of confirming or denying the story.
Ignotus Peverell
the youngest of the three.
The cloak belonged to James Potter, Harry's father. Albus Dumbledore borrowed it from James shortly before his death. Dumbledore then returned it to Harry during his first Christmas at Hogwarts.
He was in first year.
Harry had an invisibility cloak that made him invisable
Harry's invisibility cloak is very special and not a normal invisibility cloak. It is not possible for it to be ruined.
A cloak in Harry Potter that gives him invisibility.
By having a invisibility cloak like harry did.
Ignotus Peverell
In the Harry Potter Universe, invisibility cloaks are made from the hair of a demiguise, a magical creature with the ability to turn itself invisible. These cloaks will eventually go opaque over time, which Harry's will not. He posseses a "true" invisibility cloak which originally belonged to Death.
The invisibility cloak which was in Albus Dumbledore's possession.
The third brother, Ignatius Peverell, I believe
His invisibility cloak.
His "Cloak of Invisibility"
the youngest of the three.
The cloak belonged to James Potter, Harry's father. Albus Dumbledore borrowed it from James shortly before his death. Dumbledore then returned it to Harry during his first Christmas at Hogwarts.
Harry does. His ancestor was the brother in the story who was given the cloak. It was then passed down and eventually ended up with Harry.