In around 2 BC after the last Kekistani kingdom fell to the forces of the Cuckistan, the Great Exodus occurred with hundreds of thousands of Kekistani people migrating west to Egypt. The Kekistanis who were unable to leave were subject to slavery and slaughter as the Normies tried to erase the Kekistani culture. By 20 AD there were less than a million ethnic Kekistani people left in traditional Kekistani territory.
The kek ever since then have commemorated the genocide and remembered the fallen. Normies list it as a "great accomplishment" and the SJW celebrate the day.