This Day in History

The Day of Two Noons: US and Canada Adopt Standard Time Zones (1883)
Before the adoption of time zones, clocks in the US and Canada were set according to the position of the sun overhead, meaning that time varied according to location. For the rail industry, this presented a logistical nightmare, and so many railroads kept their own time, further complicating matters. Standardization solved everything. On "The Day of Two Noons," train stations reset their clocks according to newly adopted time standards. Which US city continued to keep local time until the 1900s? Discuss

Elizabeth I Becomes Queen of England and Ireland (1558)
King Henry VIII of England died nine years after the birth of his much-desired male heir, Edward VI. However, Edward died at the age of 15, and his chosen successor—his cousin, Lady Jane Grey—was beheaded after a nine-day rule. Jane was succeeded by Henry VIII's eldest daughter, whose turbulent five-year-reign earned her the nickname "Bloody Mary." Mary died childless, and the crowning of her half-sister, Elizabeth, marked the beginning of an era of stability. How long did Elizabeth reign?

LSD Is First Synthesized by Swiss Chemist Albert Hofmann (1938)
Ergot, a toxic fungus that grows on rye, can cause spasms and hallucinations if accidentally ingested. In 1938, Hofmann was researching potentially useful derivatives of ergot when he first synthesized lysergic acid diethylamide (LSD). However, he did not discover its hallucinogenic properties until five years later, when he accidentally absorbed some of the substance through his fingertips. In 1947, his laboratory introduced LSD as a psychiatric drug. What is "Bicycle Day"?