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The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
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The https:// ensures that you are connecting to the
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and transmitted securely.
Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1915 | 1 |
| 1921 | 1 |
| 1926 | 1 |
| 1934 | 1 |
| 1947 | 7 |
| 1948 | 2 |
| 1949 | 2 |
| 1950 | 1 |
| 1951 | 1 |
| 1952 | 2 |
| 1955 | 1 |
| 1957 | 3 |
| 1961 | 1 |
| 1968 | 1 |
| 1976 | 1 |
| 1983 | 1 |
| 1992 | 1 |
| 1996 | 2 |
| 2000 | 2 |
| 2003 | 2 |
| 2004 | 1 |
| 2008 | 1 |
| 2009 | 2 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 2 |
| 2025 | 1 |