The Asteroid Hit of 450,000,000 BCE was a Devastating Meteorite that slammed into ROBLOX, impacting Robloxia with the Impact site in Bloxhattan. It hit 450 million years ago. The Despacito Humans in Bloxhattan were celebrating when all of a sudden, an asteroid came hurtling at them. Due to the fact that the asteroid was not discovered until 28 hours before impact, there was little time for Despacito Humans and Robloxians in Bloxhattan to evacuate, resulting in an extreme amount of Robloxian deaths and the extinction of the Despacito Humans within 1 x 10-9 second of impact. The number of deaths will never be truly known. When the asteroid entered the atmosphere, the mildly hot weather and the friction between the asteroid and the carbon dioxide and other gases somehow managed to super heat the asteroid.
Post-impact
The asteroid struck Bloxhattan, causing a massive crater. A few minutes later, an earthquake rocked the area, causing the crater to become an active volcano. As the shock waves rung throughout the Earth, dozens of earthquakes shook parts of ROBLOX. These quakes caused massive tsunamis wiping out low-lying areas of large landmasses and completely submerging hundreds of islands. In addition to earthquakes, new fault zones appeared within 600 miles of Bloxhattan, along with ROBLOX-wide volcanic activity and new active volcanoes particularly in Robloxia, Bloxanada, and Bloxico. The impact also caused volcanoes to erupt in enormous eruptions, causing a global volcanic winter, in addition to the "asteroid winter" caused by the main impact of the asteroid. Fortunately, the new fault zones and new active volcanoes are extinct today, and the crater is now filled to the brim with concrete.
Amid all of the chaos, Despacito Humans were extinct.
Despite all of the chaos, Despacitos, Blocky Dogs, R6s ( would later evolve to R15 ), Robloxians, and 50 species survived on each of the continents.
Full list( for the curious ):
Despacitos
Blocky Dogs
R6s
Robloxians
Robloxian Dinosaurs