Christopher Latham Sholes to the "rest" position. This concept was later refined by Sholes and the resulting QWERTY layout is still used today on both typewriters and English language computer keyboards, although the jamming problem no longer exists. Sholes died on February 17, 1890 after battling tuberculosis for nine years, and is buried at Forest Home Cemetery in Milwaukee. Christopher Latham Sholes Christopher Latham Sholes (February 14, 1819 – February 17, 1890) was an American inventor who invented the QWERTY keyboard, and along with Samuel W. Soule, Carlos Glidden and John Pratt, has been contended as one of the inventors of the first
Black–Scholes model Black–Scholes model The Black–Scholes or Black–Scholes–Merton model is a mathematical model for the dynamics of a financial market containing derivative investment instruments. From the partial differential equation in the model, known as the Black–Scholes equation, one can deduce the Black–Scholes formula, which gives a theoretical estimate of the price of European-style options and shows that the option has a "unique" price regardless of the risk of the security and its expected return (instead replacing the security's expected return with the risk-neutral rate). The formula led to a boom in options trading and provided mathematical legitimacy to the activities of the