De Vries was a Dutch botanist whose theory of biological mutation and rediscovery of Mendel’s laws of heredity made possible the active investigation and universal acceptance of Darwin’s theory of evolution. He held that new species are formed chiefly through mutations—sudden, unpredictable, inheritable changes in an individual organism. Teaching at the University of Amsterdam, he introduced the experimental study of evolution. What important evolution-related term did he introduce to science? Discuss
Source: The Free Dictionary
Between May and December 1946, a number of mysterious rocket-shaped objects, termed “Ghost Rockets,” were spotted in several European countries. These reports are considered by many ufologists to be the first widespread post-World War II sightings of unidentified flying objects, or UFOs. Though many of the objects were attributed to meteors, especially those seen during the annual Perseid meteor shower, most were not. What led investigators to conclude that the objects were not merely meteors? 
Financial calculations using the old currency of the UK were complicated, as one pound was made up of 240 pence or 20 shillings, a shilling was equal to 12 pence, and the half-crown was worth two shillings and sixpence. After considering decimalization for over a century, Parliament passed the Decimal Currency Act in 1969. The pound was to be divided into 100 “new pence,” and a massive publicity campaign was launched in the weeks leading up to Decimal Day. How did people react to the change? 
This was an ancient 
Anthony was a pioneer in the US women’s suffrage movement. The daughter of an abolitionist, she was well-educated and campaigned tirelessly for abolition and suffrage, attempting to secure laws to protect women’s rights. In 1869, she and fellow suffragist Elizabeth Cady Stanton formed the National Woman Suffrage Association. She helped edit a history of the movement and purchased copies for American and European universities. In 1872, she was arrested days after doing what? 
Michel was a German woman who died in 1976 while undergoing exorcism treatments for demonic possession. She began suffering from seizures and depression when she was 16, the symptoms of which were not eased by conventional medical treatment. Convinced her condition was the result of demonic possession, Michel began a series of hour-long exorcism sessions that lasted nearly a year and ended with her death. Why were her parents and the priests who performed the exorcisms convicted of manslaughter?