Simplify the following text for a Grade 13 native English-speaking person.
Original: In 1989 , the rainbow flag came to nationwide attention in the United States after John Stout sued his landlords and won when they attempted to prohibit him from displaying the flag from his West Hollywood , California , apartment balcony .
Simplified: In 1989 , the rainbow flag received nationwide attention after John Stout successfully sued his landlords in West Hollywood , when they prohibited him from displaying the flag from his apartment balcony .