Financial services

In 1882, American Express started its expansion in the area of financial services by launching a money order business[6] to compete with the United States Post Office's money orders.
Sometime between 1888 and 1890, J.C. Fargo took a trip to Europe and returned frustrated and infuriated. Despite the fact that he was president of American Express and that he carried with him traditional letters of credit, he found it difficult to obtain cash anywhere except in major cities. Fargo went to Marcellus Flemming Berry and asked him to create a better solution than the traditional letter of credit. Berry introduced the American Express Traveler's Cheque which was launched in 1891 in denominations of $10, $20, $50, and $100.
Traveler's cheques established American Express as a truly international company. In 1914, at the outbreak of World War I, American Express offices in Europe were among the few companies to honor the letters of credit (issued by various banks) held by Americans in Europe, despite other financial institutions having refused to assist these stranded travelers.