Simplify the following text for a Grade 9 native English-speaking person.
Original: William Wordsworth ( 7 April 1770 â `` 23 April 1850 ) was a major English Romantic poet who , with Samuel Taylor Coleridge , helped to launch the Romantic Age in English literature with the 1798 joint publication Lyrical Ballads .
Simplified: William Wordsworth ( April 7 , 1770 â `` April 23 , 1850 ) was an important poet of the Romantic Age in English literature .