The cellphone was invented in 1973. The first call from a cellphone was made in New York City on April 3, 1973.Know More
The first cellphone was manufactured by Motorola. The phone was called the Motorola DynaTAC 8000x, which later became the first commercial cellphone sold to consumers in 1983.
Even though the first phone call was made from a cellphone in the 1970s, the electronic device didn't gain popularity until several decades later. The Nokia 3210, which was released in 1999, spearheaded the popularity of the cellphone. Since then, the phone has drastically changed, evolving from a device that can make phone calls to one that can process data and surf the Web.Learn more in Inventions
Dr. Ian Donald invented the first ultrasound machine in 1957 and tested it on patients a year later. The discovery was made in Glasgow, Scotland, and by the end of the 1950s ultrasounds became routine in Glasgow hospitals.Full Answer >
Dr. Henry Sampson did not invent the cellphone, but he did invent a number of advances in solid-state rocket propellant and a gamma-electric cell for generating electricity from gamma radiation. The invention of the cellphone is credited to Dr. Martin Cooper.Full Answer >
Brahmagupta, a Hindu mathematician and astronomer, first used a dot underneath other numbers to represent the number zero in 628 A.D. He was the first to develop additive and subtractive operations that use zero.Full Answer >
Modern ice hockey rules were created by Canadian athlete, journalist and lawyer James George Aylwin Creighton. The first game of modern ice hockey was played in 1875 in Montreal, Canada. Ice hockey likely evolved from field hockey played in Northern Europe.Full Answer >