Purchased from the sultan of Kedah, the island became a major trading entrepot and base for further British expansion in south-east Asia.
Editors. "East India Company acquires Penang off Malay coast". The Literary Encyclopedia. First published 01 February 2010; last revised 30 November -1.
[http://www.litencyc.com/php/stopics.php?rec=true&UID=4289, accessed 21 April 2015.]