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1792 - The US buys the site for the Philadelphia Mint for $5466.66.

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1794 - The Bank of Maryland makes the first deposit of silver bullion at the US Mint, $80,715.735 in French coins.

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1932 - US and Canada sign a treaty to develop Saint Lawrence Seaway.

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1940 - First successful helicopter flight, Stratford, Connecticut, USA.

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1942 - First legal New Jersey horse race in 50 years; Garden State Park track opens.

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1947 - US receives United Nations trusteeship over Pacific Islands.

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1955 - Disneyland opens to the public, with general admission costing US$1. Cost of the twenty attractions range from 10c to 35c.

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1964 - Race riot in Harlem, New York City; riots spread to Bedford-Stuyvesant (Brooklyn).

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1966 - Gemini X is launched.

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1967 - Silver hits record US$1.87 an ounce in New York.

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