​ One of the most popular collectibles in modern coinage is the Kennedy half dollar , which was first minted in 1964 and continues to be struck for sale to collectors. While the Kennedy half dollar was made for commerce purposes until 2002, the series didn't circulate widely after the mid-1960s, by which point millions of Americans were saving the ...

In 1892, the United States first minted Columbian Exposition silver half dollars to commemorate the 400th anniversary of Christopher Columbus’ voyage to the Americas. The Columbian half dollar was struck in 1892 and 1893 and was sold for $1 as a souvenir at the World’s Fair in Chicago. Over the course of two years, some 5 million pieces were struck, with 950,000 dated 1892 and the remainder made in 1893.