| Characteristic | Latin | Greek | French | German | Spanish | Dutch | Hebrew | Indonesian | Mandarin Chinese | Russian | Old English | Italian |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| John Adams | 1 | - | 1 | - | - | - | - | - | - | - | - | - |
| Thomas Jefferson | 1 | 0.5 | 1 | - | 0.5 | - | - | - | - | - | 0.5 | 1 |
| James Madison | 1 | 1 | - | - | - | - | 1 | - | - | - | - | - |
| James Monroe | - | - | 1 | - | - | - | - | - | - | - | - | - |
| John Quincy Adams | 1 | 0.5 | 1 | 1 | 0.5 | 0.5 | - | - | - | 0.5 | - | 0.5 |
| Martin Van Buren* | 0.5 | - | - | - | - | 1 | - | - | - | - | - | - |
| William Henry Harrison | 1 | - | 0.5 | - | - | - | - | - | - | - | - | - |
| John Tyler | 1 | 1 | - | - | - | - | - | - | - | - | - | - |
| James K. Polk | 1 | 1 | - | - | - | - | - | - | - | - | - | - |
| James Buchanan | 1 | 1 | - | - | - | - | - | - | - | - | - | - |
| Rutherford B. Hayes | 1 | 1 | 0.5 | - | - | - | - | - | - | - | - | - |
| James A. Garfield | 1 | 1 | - | - | - | - | - | - | - | - | - | - |
| Chester A. Arthur | 1 | 1 | - | - | - | - | - | - | - | - | - | - |
| Theodore Roosevelt | 0.5 | 0.5 | 1 | 1 | 0.5 | 0.5 | - | - | - | - | - | 0.5 |
| Woodrow Wilson | - | - | - | 1 | - | - | - | - | - | - | - | - |
| Herbert Hoover | 1 | - | - | - | - | - | - | - | 0.5 | - | - | - |
| Franklin D. Roosevelt | 0.5 | - | 1 | 1 | - | - | - | - | - | - | - | - |
| Jimmy Carter | - | - | - | - | 1 | - | - | - | - | - | - | - |
| Bill Clinton | - | - | - | 1 | - | - | - | - | - | - | - | - |
| George W. Bush | - | - | - | - | 0.5 | - | - | - | - | - | - | - |
| Barack Obama | - | - | - | - | - | - | - | 0.5 | - | - | - | - |
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Source
Release date
February 2021
Region
United States
Survey time period
1789 to 2021
Supplementary notes
*Martin Van Buren's first language was Dutch. He spoke fluent English.
Proficiency and fluency in languages is a subjective topic; the sources used claim varying levels of proficiency or fluency for each president. For the purposes of displaying this data, cases where the presidents appeared to be fluent in a given language have been given a value of 1, while cases where presidents had partial knowledge or their proficiency level is unclear have been given a value of 0.5.
This data was compiled from and cross-referenced with multiple sources, most notably; , , , and .
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