• 60,000,000 BC
- The first outbreaks of the zombie virus begin. However, due to the geographical isolation and small population of the areas where these outbreaks occurred, the outbreaks were short-lived and easily contained.
- The first large scale zombie outbreak begins in China. Fearing that the west will view them as weak if they found out about the outbreaks, the Chinese Government covers up its search and destroy operations by claiming that they are dissident crackdowns. Refugees begin fleeing China.
- Outbreaks begin in California, Oregon, Washington, Arizona, Nevada, Idaho, Utah, Vancouver, and Tijuana. The media dismisses these outbreaks as a Mad Cow Disease epidemic. ASCLEPIUS Industries, an up and coming pharmaceutical company founded by Yale Professor of Biology Stephen Leon and his partner Doctor Sybil Martinez, begins researching anti-Mad Cow Disease treatments. Deaths are reported, but all are blamed on either drugs or Mad Cow Disease and grisly details are covered up to avoid a panic.
- The virus spreads to Arizona, Texas, Montana, New Mexico, Kansas, Arkansas, Oklahoma, Colorado, Wyoming, Louisiana, Mississippi, Alabama, Georgia, Tennessee, and South Carolina. The Mad Cow Disease treatment Testudo is released to the public. Outbreaks are reported in Mexico City and Winnipeg. Emergency services in urban areas are stretched to the limit as 911 calls begin flooding in, increasing the death toll as there are not enough police officers to answer dispatches.
- The truth about zombies is revealed, causing panic throughout the United States. New York and Washington DC are overrun. Last stands are made in Memphis, Montpelier, and Bismarck, but all three are nuked as military positions are overrun. The Governor of Florida, seeing that an offensive would be suicide, orders the remaining Army, Navy, Air Forces, Marine, Special Forces, and National Guard units in Florida to retreat to the Florida Keys, the Governor of Alaska and Maine's State Senate implementing similar strategies.
- The Mid-Western Safe Zone is overrun, leaving the remnants of the United States Military divided between various generals, admirals, warlords, and state officials. The Iroquois, Huron, Cherokee, Seminoles, Sioux, Osage, Apache, Cheyenne, Kiowa, Blackfoot, Cree, Ojibwe/Ojibwa/Chippewa, and various other tribes in North America begin reclaiming lands that were abandoned by fleeing refugees and retreating militaries as new settlements are built and new kingdoms emerge.
