In which decade was the telegraph invented?

SPICE (Simulation Program with Integrated Circuit Emphasis) was introduced in May 1972 by the University of Berkeley, California.

Alexander Graham Bell's notebook entry of 10 March 1876 describes his successful experiment with the telephone. Speaking through the instrument to his assistant, Thomas A. Watson, in the next room, Bell utters these famous first words, "Mr. Watson -- come here -- I want to see you".

Bette's other claim to fame was being the mother of Michael Nesmith of the Monkees.

The first toothbrush was made out of a bone and small brush, by jail prisoner William Addis of England.

Christopher Cockerell invented the hovercraft in 1956. His early experiments with the idea involved a cat food tin, a coffee tin and an industrial blower.

On September 12, 1958, Jack Kilby demonstrated the first working IC while working for Texas Instruments, although the U.S. patent office awarded the first patent for an integrated circuit to Robert Noyce of Fairchild.

It was originally called the 'Epsicle' in his honor. (I can see why that name didn't catch on).

Unfortunately Blount could never get anyone to buy her invention. Finally, in 1952 she sold the rights to the French government.

Matzeliger never benefited financially from his inventions. He died in 1889 at the age of 37 from tuberculosis.

Later in 1840, Rowland Hill invented the stamp, which was paid for by the sender, not the receiver.