Photo credits
Where the friend portraits came from
Portrait credits
Every portrait in the friends block came from Wikimedia Commons. Each was squared and resized to fit the page; nothing else was changed.
| Person | Author | Date | Licence | |
|---|---|---|---|---|
 |
Johann Sebastian Bach | Elias Gottlob Haussmann | 1748 | Public domain |
 |
Ludwig van Beethoven | Joseph Karl Stieler | 1820 | Public domain |
 |
Modest Mussorgsky | Unknown | 1870 | Public domain |
 |
Fyodor Dostoevsky | Vasily Perov | 1872 | Public domain |
 |
Mikhail Bulgakov | Михаил Булгаков | 1930 | Public domain |
 |
Albert Einstein | Ferdinand Schmutzer / Adam Cuerden | 1921 | Public domain |
 |
Wolfgang Amadeus Mozart | Barbara Krafft | 1819 | Public domain |
 |
Dennis Ritchie | Denise Panyik-Dale | — | CC BY 2.0 |
 |
Joe Pass | Tom Marcello Webster, New York, USA | 1975 | CC BY-SA 2.0 |
The historical portraits are in the public domain. The photographs of Dennis Ritchie and Joe Pass are under Creative Commons licences that require the photographer to be named, which is what this page is for. A resized copy of a CC BY-SA image is an adaptation, so those copies are offered under the same licence as the original.