1972 ( http://datamath.org/BASIC/DATAMATH/ti-2500-1.htm )
1972
TI-2500 DataMath introduced
1972 ( http://datamath.org/BASIC/DATAMATH/ti-2500-1.htm )
1972 link here for evidence http://datamath.org/BASIC/DATAMATH/ti-2500-1.htm
first calculator is a Datamath Version 2 manufactured April, 1973, the second calculator was produced in the Abilene, TX facility and the third is a modern, Taiwanesian LCD calculator. Dai Donking Wales
The first airplane was introduced about 1897.
it was introduced in 1923
Cattle were first introduced with the First Fleet in January 1788.
He is introduced in the first page of Stave one.
The factory act was first introduced in 1833.
The first camcorder was introduced around 1982 by JVC.
It was first introduced in 1987
Shampoo was first introduced around the 1930's.