This Day in History

René Robert Cavelier, Sieur de La Salle, Murdered by His Own Men (1687)
La Salle was a celebrated French explorer of North America. He began exploring the Great Lakes in 1679, setting up forts in the region and organizing a federation of native American tribes to fight the Iroquois. Given power to colonize the region between Lake Michigan and the Gulf of Mexico, he set sail in 1684 for the mouth of the Mississippi River, which he was ultimately unable to locate. Beset by losses of men and ships, La Salle was killed by mutineers after having mistakenly landed where? Discuss

UK Recognizes British Sign Language as Official Language (2003)
Making use of space and involving movement of the hands, body, face, and head, British Sign Language (BSL) is the preferred language of deaf people in the UK and those who communicate with them, such as relatives and interpreters. BSL has regional and local dialects, and some signs go in and out of fashion or evolve over time, just like spoken words. Although English is the predominant spoken language in both the UK and US, BSL differs from American Sign Language in what ways?

Californium First Synthesized (1950)
The sixth transuranium element to be synthesized, californium is an artificially produced, radioactive metallic chemical element. A member of the actinide series of elements, it has isotopes with half-lives ranging from about 40 seconds to 900 years. One isotope, californium-252, is used as a neutron source in nuclear reactors. More than 50 years after it was first produced by researchers at the University of California at Berkeley, californium was used to create what superheavy element?

Spring snowstorm barging into Colorado, Wyoming
Amounts could vary greatly, but up to 15 inches of snow could fall at higher elevations in Colorado.