September 20, 2015September 21, 2015 Sang N. In the 1920s, a German architect proposed damming the Mediterranean to create a supercontinent In the 1920s, a German architect proposed damming the Mediterranean to create a supercontinent (CityMetric ) Rate this:Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading... Related