Posted: Jan 18, 2017 07:34 PM PST
Updated: Jan 18, 2017 07:34 PM PST
UCSC teach-in ahead of Donald Trump's inauguration
Vasco da Gama arrives in India, Christopher Columbus dies, HIV is discovered, and "Cheers" airs its series finale, all on this day.
Anne Boleyn loses her head, Oscar Wilde gets out of prison, Marilyn Monroe sings for the president, and Jacqueline Kennedy Onassis dies, all on this day.
With Friday marking Bike to Work Day, and the end of Bike to Work Week, find out if your state is one of the most bicycle-friendly in the country.
Napoleon is proclaimed French emperor, Lincoln wins the Republican Party presidential nomination, the Supreme Court upholds "separate but equal" segregation, and Mount St. Helens erupts, all on this day.