It is unknown for sure, however, it seems like technology was not very involved, so one could assume that it could happen at around 1000 A.C. or so.
The series of events that happen in a literary work is called the "plot." Another common name for the plot is the "storyline."
The answer is rather simple. He is an airbender, and the genes would pass off into his children [with Katara]. So his kids will be airbenders [though not Avatars]. Another plot that could be used is that, if you do pay enough attention to the show, the next Avatar would be a waterbender [the Cycle goes air, water, earth, fire] and that could also be his child because he clearly is going to have them with Katara, who is a waterbender. An Avatar does not have to be an airbender; the Avatar could come from any of the Four Nations, as long as they are still alive, but of course they will be anyways. There is a rumour from the producers of Avatar saying that airbenders learned to 'become' the wind when the war began. So they may well return...
avatar
There are three seasons of avatar the last airbender and four of avatar the legends of korra. You can watch then on kissanime, just search for Avatar and they'll all be there. I watched it all there.
yes avatar Roku was a fully realized avatar he masted all the elements as every other has
no
avatar
Avatar - video game - happened in 1979.
A. B. plot happened in 1824.
Business Plot happened in 1933.
Bojinka plot happened in 1995.
Avatar was made over 11 years by combining the plot of Dances with Wolves with visuals from Starship Troopers and the thematics of Fern Gully.
The plot is just what happens in the story. You can't have plot going on outside of a story, no.
The Plot - video game - happened in 1988.
A plot is what happens in a story. Creating a plot is what you do when you think up what's going to happen.
The series of events that happen in a literary work is called the "plot." Another common name for the plot is the "storyline."
Army General Staff Plot happened in 1948.