In 1918, in Cologne, Germany, Mayor Konrad Adenauer applied for a patent for his novel way of preserving meat: mixing sausage with soy flour. Although not strictly vegetarian, the method had staying power. Soy products are now a multibillion-dollar industry in the United States alone.
In hopes of restoring tourism throughout Europe, the League of Nations issued guidelines for uniform passports in 1920. The standard documents were to include a cover embossed with the issuing country’s name and coat of arms—the same basic look they have today in most every country, including the United States. Next, take a look at these hilarious inventions that failed spectacularly.