Modern commemorative sets from the United States, such as the 2021 releases, typically celebrate significant events, individuals, or themes in American history and culture. These sets often include a combination of coins such as silver dollars, half dollars, and quarters, showcasing unique designs and historical significance. The 2021 commemorative coins included the National Law Enforcement Museum commemorative coins and the Women's Suffrage Centennial coins, each produced in limited quantities and often sought after by collectors for their artistic value and potential for appreciation. Overall, these sets are part of the U.S. Mint's effort to honor American heritage while providing collectors with distinctive additions to their collections.