In September 2014, when the fourth generation was introduced, the adjective Kindle was dropped. In September 2015, the fifth generation Fire 7 was announced, starting at US$49.99, followed by the sixth generation Fire HD 8, in September 2016, at US$89.99.
The president with the most children was President John Tyler, who served from 1841 to 1845. He had 15 children between the years 1815 and 1860. He had them with two different wives. Eight were with his first wife, Lettia Tyler, and the other seven were with his second wife, Julia Gardiner.
Ages Of US Presidents. John F. Kennedy is the youngest-ever elected president, aged 43. However, Theodore Roosevelt is the youngest person to ever become president. He was 42 when he succeeded to the presidency, following the assassination of McKinley. Ronald Reagan is the oldest person ever to be elected president. He was 69.