He was originally the leader of the Senju clan. He stood at the top of the ninja world and everyone acknowledged his superiority. After fighting against the Uchiha clan for so long, the Senju's main rivals, he eventually allied with them. Soon after they made a deal with the Land of Fire to form Konohagakure, and the system of one country and one ninja village was created and quickly adapted by the other countries, as a result the world became rather peaceful.

He taught the "Will of Fire" to the village and had a special blood-line ability that allowed him to create the forest surrounding the village. Hashirama originally had several Bijuu under his control, but he gave them to other countries as a sign of trust and to balance power.

Some time later he and Madara had a falling out over the rights of leadership; he won and became the 1st Hokage. Their battle however was so great that it shaped what is now known as the "Valley of the End." The village engraved statues of Madara and Hashirama facing each other in the sides of the valley's waterfall.

Powers/Abilities

In the Narutoverse people's chakra possess a single elemental affinity which allows the individual to learn that specific element easier than any other. However, due to his unique biology, the 1st Hokage possesses two elemental affinities: water and earth. By utilizing both of these elemental affinities at the same time while performing a technique, the 1st Hokage could create trees.

The full range of his abilities are unknown aside from mokuton, but he has demonstrated a technique as Orochimaru's undead servant called "Bringer of Darkness," a genjutsu that would envelop his opponent in pure darkness which robbed them of their sight. He also possessed the ability to bend Bijuus to his will.