Jane Jacobs was an influential urban theorist known for her critique of modernist planning in her book The Death and Life of Great American Cities. She argued cities should have short blocks to encourage exploration, a diversity of uses and ages of buildings to support different types of enterprises, and dense sidewalk activity provided by bordering buildings to promote safety. Putrajaya, Malaysia's new federal territory, successfully applied several of Jacob's theories by dividing the city into distinct precincts with a variety of functions, connecting precincts with landscaped boulevards, and planning diverse residential and commercial areas to encourage community and economic growth over time.