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The borders on this mid-19th century map of mainland Southeast Asia are colour-coded to show kingdoms, countries and colonial territories. Twelve different scales are shown, as different countries used different measurement systems.

Coloured borders are used to highlight the colonial territories of the British (red), Dutch (orange), Spanish (red) and Portuguese (blue) on this mid-19th century map of Southeast Asia. An inset map shows the island and strait of Singapore.

Regional borders are colour-coded on this mid-19th century map of mainland Southeast Asia, with British colonial territory in red (including part of the Burman Empire, the Straits Settlements, and Sarawak on Borneo).