History of animal testing
In 1996 Dolly the sheep was born, the first mammal to be cloned from an adult cell. The process by which Dolly the sheep was cloned utilized a process known as nuclear transfer applied by lead scientist Ian Wilmut. Although other scientists were not immediately able to replicate the experiment, Wilmut argued that the experiment was indeed repeatable, given a timeframe of over a year.
John French Sloan
In 1898, the socially awkward Sloan was introduced to Anna Maria (Dolly) Wall (born July 28, 1876), and the two fell immediately in love. In entering into a relationship with her, Sloan accepted the challenges posed by her alcoholism and her sexual history, which included prostitution; although Dolly worked in a department store by day, Sloan had, in fact, met her in a brothel. They were married on August 5, 1901, providing Sloan with an affectionate partner who believed in him absolutely, but whose lapses and mental instability led to frequent crises. A particularly close friend in their New York years, who helped the couple to weather many of these crises, was the artist John Butler Yeats, the elderly father of poet William Butler Yeats.