9.18 Historical Museum, War memorial museum in Dadong District, Shenyang, China.

The 9.18 Historical Museum is a war memorial museum in Shenyang that documents the Japanese occupation from 1931 to 1945. The complex houses several exhibition areas displaying objects, documents, and reconstructed scenes from that period.

The museum stands beside the site of the Liutiao Lake incident of September 18, 1931, which began the Japanese occupation of Manchuria. The original hall opened in 1991; an expansion started in September 1997 and the new building opened on September 18, 1999. Since 1994 it has served as a base for a patriotic education campaign.

The galleries show how ordinary Chinese people lived and resisted during the occupation through personal objects and everyday photographs. You can see the ways communities adapted to life under foreign control.

The museum is accessible by public transport and visitors have adequate time to explore all areas. Guided tours are available to help with orientation and provide context for the exhibitions.

The old hall, opened in 1991, is shaped like a calendar page for 18 September 1931, the date of the Liutiao Lake incident. It now stands closed, but its silhouette still appears in most photographs used to present the museum. The large new hall opened on 18 September 1999.