telegraph
booty
telephone
booty
The twentyfirst century.because if its 2011 it would skip 100 years and it would be the twentyfirst century.
Nineteenth
Communication by mail.
Nineteenth
No, the television was developed and introduced to the commercial market in the 1940s and 1950s, about halfway into the twentieth century.
Morse's telegraph
Modern set theory was developed by Georg Cantor and Richard Dedekind in the late nineteenth century.
The nineteenth century was from 1800 - 1899.
Not all introduced animals to Australia came in the 1800s, but those that did arrive in the nineteenth century include:camelsfoxesrabbitsdeercane toadswater buffaloEuropean carp