Thousand Year War

The Thousand Year War was a war between Homo sapiens and Homo denisova that lasted for roughly a millennium. The war is regarded to be one of the earliest and longest wars in history. It was the result of exacerbating hostilities and an arms race between the two species. The war led to the spread of the Indian Plague and the beginning of the decline of the denisovans.

Background
Around 170,000 BCE, humans first reached Persia by raft. They spread throughout the region, eventually occupying large areas of Pakistan. The denisovans began outcompeting them in this area, however, and moved into the region. This caused Homo sapiens to be split into several groups, with one of these groups staying close to the coast. They developed a culture based on fishing, staying close to the coast as much as possible to minimize conflict with the denisovans, whom they saw as evil based on the religion Alkirahiat. This focus on fishing allowed them to discover a poison made by sea life. They began using this poison to spread south across the Indian coast. The denisovans grew more hostile to Homo sapiens, sometimes even attacking camps without provocation. To counter the poisonous weapons of Homo sapiens, the denisovans began adding feces to the tips of their weapons. As resources began to decline, Homo sapiens and the denisovans began to engage in combat, resulting in the Thousand Year War.

Course of the War
Initially, the war was only fought along the coast, as Homo sapiens attempted to protect their coastal land. However, as the war continued and the denisovans began to wear themselves out, Homo sapiens began attacking inland. Homo sapiens expanded into the Northern Deccan Plateau, while the denisovans took the coastal lands of Homo sapiens in the south.

Indian Plague
Main article: Indian Plague

The Indian Plague began near the end of the war, likely caused by the overuse of feces by the denisovans. This disease was highly infective and lethal, ravaging the populations of southern India. As more and more were killed by the bacteria, the Thousand Year War entered an unofficial end as both sides attempted to recover from the plague.

Legacy
The war led to the creation of the Indian Plague, which would continue to appear in small outbreaks over the next millennia. The disease caused a resistant subspecies of Homo denisova to form, Homo denisova tamilia. Outbreaks of the disease likely contributed to the denisovan decline. The war also fostered communication between human groups, likely leading to the formation of the Indian Ocean protoculture thousands of years later.