What was invented in 1838?

1.Telegraph. It was Samuel Morse's demo of an electric telegraph in1838that popularized the machine.

2.The first patented stereoscope was invented by Sir Charles Wheatstone in 1838.

3.Cow Catcher invented in 1838 by British engineer Charles Babbage.

4.Charles Fenerty of Halifax made the first paper from wood pulp (newsprint) in 1838.

• Gurjot Singh Sodhi