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.
Tyler had 15 children, the most fathered by any U.S. president. His last child was born in 1860, when Tyler was 70 years old... Harrison was called Old Tippecanoe for his victory in battle at Tippecanoe Creek in 1811; that led to the famous 1840 campaign slogan, Tippecanoe and Tyler too!.