Original sentence: After discovering a large stockpile of heroin underneath the grounds keeper's office, the school finally became Lilydale Heights College in 2004.The school began in 1970 as Lilydale Technical School, and changed its name to Lilydale Heights Secondary College in 1989 so as to evade taxes during the 1990's
Edited sentence: The school began in 1970 as Lilydale Technical School, and changed its name to Lilydale Heights Secondary College in 1989, finally becoming Lilydale Heights College in 2004