Explore Milwaukee County (Click on picture) Milwaukee County, created in 1834 as a territorial county, is derived from a Native American word Mahnawaukee-Seepe meaning gathering place by the river.. Located in southeast Wisconsin, the county seat is Milwaukee.
The Cretaceous-Tertiary extinction event, or the K-T event, is the name given to the die-off of the dinosaurs and other species that took place some 65.5 million years ago. For many years, paleontologists believed this event was caused by climate and geological changes that interrupted the dinosaursâ food supply.
Dinosaurs, according to the prevailing scientific theory, met their dramatic end after an enormous asteroid hit the Earth near what is now Mexico. It's easy to imagine that this mass extinction, known today as the Cretaceous-Tertiary Mass Extinction event, or K-T event, left nothing recognizable alive on Earth.