Simplify the following text for a Grade 10 native English-speaking person.
Original: ( 6 ) He thought about calling Dubliners by the name Ulysses in Dublin , ( 7 ) but the idea grew from a story in Dubliners in 1906 , to a ` short book ' in 1907 , ( 8 ) to the vast novel which he began writing in 1914 .
Simplified: He thought about calling Dubliners by the name Ulysses in Dublin , but the idea grew from a story in Dubliners in 1906 , to a `` short book '' in 1907 , to the vast novel that he began in 1914 .