On September 25, 2013, the Kindle Fire HD was upgraded as the third generation Fire, priced at US$139, and the Kindle Fire HDX was introduced. The Kindle Fire HDX had an improved graphics engine, double the memory, and triple the processor speed of the previous model.
Washington, wary of the dangers posed by an individual's becoming entrenched in the presidency, created a two-term tradition that remained intact until Franklin Delano Roosevelt's third consecutive election in 1940.
The twenty second amendment to the US Constitution limited the tenure of Presidency by prohibiting re-election for a third term. Moreover, even if a President served as President or Acting President for more than two years of a term of another President, they can still only be elected only for one more full term.