Mapping the Philippine Seas, an exhibition of 165 maps and sea charts of the Philippine archipelago from the 16th to the 19th century from the private collections of the Philippine Map Collectors Society. At the Metropolitan Museum of Manila. Opened 15 March, runs until 29 April. BusinessWorld. [WMS]

The Osher Map Library’s next exhibition, To Conquer or Submit? America Views the Great War, opens this Thursday (Facebook, Eventbrite). It “commemorates and explores American participation in the Great War—the ‘War to End All Wars’—with a sample of informative and propagandistic posters, maps, and atlases” from the Osher collections, which are based at the University of Southern Maine in Portland.

The World According to Blaeu: Joan Blaeu’s 1648 map of the world, more than two by three metres in size, will be on display at the National Maritime Museum in Amsterdam from 14 April to 31 December. [WMS]