broken fence above Pu'ukohola Heiau
King Kamehameha was instructed to build Pu'ukohola Heiau in order to unite all the islands as one kingdom. The instructions specified the stones had to be ocean washed lava so the builders had to form a human chain all the way up to the north end of the island and hand each stone down the line one at a time. King Kamehameha worked side by side with his warriors and other workers, even camping with them during the long construction until the heiau was complete.
By the time the heiau was complete, Kamehameha ruled over all the islands except for the lands controlled by his own cousin on the Big Island of Hawaii. He invited his cousin to the dedication ceremony and -whether it was planned or not- a fight broke out between the two camps and the cousin and his warriors were slain on the spot, fulfilling the prophecy and making Kamehameha the first king to rule all the islands at once.