Siteseen
Siteseen: American Historama: Sinking of the Lusitania Facts
A comprehensive summary with interesting facts about the sinking of the Lusitania passenger liner by a German U-Boat that drew the U.S. into WWI.
Curated OER
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A site detailing the events leading up to the US' involvement in WWI, especially the sinking of the Laconia. Includes a primary source document, a newspaper article written at the time of the sinking.