Puducherry was discovered by Romans in 200 BC and has since been ruled by various powers, including the Portuguese, Dutch, and French who established control in 1654. Under French rule until 1954, Puducherry developed a strong French cultural influence seen today in its architecture, grid street plan named after French figures, and French cuisine. It also became known for its spiritual centers like Sri Aurobindo Ashram which aims to transform human nature, and the universal township of Auroville just outside the city.