So-Called Dollars are a specific type of commemorative medal or coin often associated with events or significant figures, primarily issued in the late 19th and early 20th centuries. The term originates from the 1 Dollar denomination issued by the United States Mint, notably featuring the 1889 designs that commemmorated significant occurrences or anniversaries. These pieces are typically not legal tender but hold value due to their rarity and historical significance, attracting collectors interested in U.S. numismatics and commemorative issues.