The War of Humans and Monsters

The War of Humans and Monsters was the first war between two different sentient species taking place about over 800 years ago. A quick yet fierce battle between the Humans and Monsters.

History
Before the entire war, Humans and Monsters ruled earth in harmony. That harmony was abruptly ended when a human died, a monster had absorbed the soul. When the Humans learned about this new ability, fearing that a monster could gain such power from one human soul and exterminate the human civilization. The Humans quickly declared war on the Monsters.

Monsters were too weak to put up a fight; the soul of nearly every monster combined is only just as strong as the power of one human SOUL. Countless monsters were massacred, without a single human SOUL taken. Eventually, the monsters surrendered, and the humans emerged victorious. The humans gathered seven of their best magicians, a special race that lingers on in the 21st century, and sealed the monsters under Mount Nabbott with a magic spell.

Aftermath for Monsters
After the war, the monsters retreated into the deepest part of the Underground, which they called "Home." After a period had passed, fearing the humans no longer, they populated the rest of the Underground and made their capital in a place they called "New Home".

Monsters mostly blamed the war on humanity and took a vengeful look at the human race. This bitterness led King Asgore to declare war against humanity, installing a policy to kill all humans that fell into the Underground and eradicate humans once the seven souls needed to break the barrier are collected.

Aftermath for Humans
After the war, the Humans began ruling the earth alone. This began the thirst for war for the Humans. Humans separated into factions or also known as Nations and began declaring war on each other. The War had shaped the Humans into a warmongering greedy race with barely any remorse for what they did.

Nothing really was left behind of the war to be remembered by. The Humans wished and demanded to forget about the war and destroy anything written about the war. The only thing left to remember the war was the statue in Kaarila, A small Astrolanion town next to the bottom of the mountain