Image from Wikimedia Commons
Nicolas Bacri - CC0 1.0
Julienmorvan - Public Domain
Chopradio - CC BY-SA 4.0
Onofrio Panvinio 1529-1568 - Public Domain
unknown - Public Domain
1987AW - CC BY-SA 3.0
unknown -
Georges Biard - CC BY-SA 3.0
Taghkanic - CC BY-SA 3.0
unclear - Public Domain
New York World-Telegram and the Sun staff photographer - Public Domain
A. Antoniadi (d'après) - Public Domain
attributed to Thomas Athow, after Unknown artist - Public Domain
Samuel Purchas Richard Hakluyt - Public Domain
Andrzej Tadeusz Kijowski - CC BY 3.0
Edwin L. Norris, author. Frank A. Munsey Company (New York, NY), publisher. - Public Domain
Image from Wikimedia Commons
Achillini, Claudio, 1574-1640
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Nicolas Bacri - CC0 1.0
Bacri, Nicolas
Image from Wikimedia Commons
Julienmorvan - Public Domain
Fabian, Françoise 1932-
Image from Wikimedia Commons
Chopradio - CC BY-SA 4.0
Kailath, Thomas
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Onofrio Panvinio 1529-1568 - Public Domain
Marcellus II, Pope, 1501-1555
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Holland, H. Russel (Hezekiah Russel), 1936-
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Potter, Robert, 1799?-1842
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Waller, Lewis, 1860-1915
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unknown - Public Domain
Seymour, Ralph Fletcher, 1876-1966
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1987AW - CC BY-SA 3.0
Carter, 1970-
Image from Wikimedia Commons
unknown -
Prandtl, Ludwig, 1875-1953
Image from Wikimedia Commons
Georges Biard - CC BY-SA 3.0
Bouchitey, Patrick, 1946-....
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Cars, Laurent, 1699-1771
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unknown - Public Domain
Felt, D. E. (Dorr Eugene), 1862-
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Jones, Henry Festing, 1851-1928
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Hughes, Ted, 1930-1998
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Taghkanic - CC BY-SA 3.0
Berger, Maurice, 1956-....
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unknown - Public Domain
Wallack, Henry John, 1790-1870
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Raemaekers, Louis, 1869-1956
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unclear - Public Domain
Kracauer, Siegfried, 1889-1966
Image from Wikimedia Commons
New York World-Telegram and the Sun staff photographer - Public Domain
Yawkey, Thomas A., 1903-1976
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A. Antoniadi (d'après) - Public Domain
Krauss, Henry, 1866-1935
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Biṛalā, Ghanaśyāmadāsa, 1894-1983
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attributed to Thomas Athow, after Unknown artist - Public Domain
Crew, Thomas, Sir, 1565-1634
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Bois, Rob du, 1934-2013
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Nani, Battista, 1616-1678
Image from Wikimedia Commons
Samuel Purchas Richard Hakluyt - Public Domain
Purchas, Samuel, 1577?-1626
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Andrzej Tadeusz Kijowski - CC BY 3.0
Kijowski, Andrzej, 1928-1985
Image from Wikimedia Commons
Dering, Edward, Sir, 1598-1644
Image from Wikimedia Commons
Edwin L. Norris, author. Frank A. Munsey Company (New York, NY), publisher. - Public Domain
Norris, Edwin L. (Edwin Lee), 1865-1924