Paul Ekman 2016 —
Photo Credit: By Momopuppycat - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=54340906

Toland Hall in 1887 — Toland Hall on Stockton was the first home of what would become UCSF, before its transfer to the Parnassus campus.
Photo Credit: By University of California (1868-1952). Medical Dept, No restrictions, https://commons.wikimedia.org/w/index.php?curid=42506688

Seal of the University of California, San Francisco —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=29175325

Deady and Villard Halls at University of Oregon — The first two buildings on campus, only Deady Hall existed when the school opened in 1876
Photo Credit: By Persons gifting photographs to the Oregon State Library - Images courtesy of the Oregon State Library, CC BY 3.0, https://commons.wikimedia.org/w/index.php?curid=29177143

Official Seal of the University of Oregon —
Photo Credit: By Source (WP:NFCC#4), Fair use, https://en.wikipedia.org/w/index.php?curid=52965824

Douglas Hofstadter — In Bologna, Italy, 2002
Photo Credit: By Maurizio Codogno, it:Utente:.mau. - Own work, CC BY 2.5, https://commons.wikimedia.org/w/index.php?curid=906102

Gödel, Escher, Bach First edition cover —
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=46221520

Romanos II —
Photo Credit: By Published by Guillaume Rouille(1518?-1589) - "Promptuarii Iconum Insigniorum ", Public Domain, https://commons.wikimedia.org/w/index.php?curid=9004265

Death of Empress-dowager Helena Lekapene — September 961
Photo Credit: By 13th-century author. - History of John Skylitzes - Public Domain, https://commons.wikimedia.org/w/index.php?curid=20332951

Christopher Lekapenos from coin —
Photo Credit: By Classical Numismatic Group, Inc. http://www.cngcoins.com, CC BY-SA 2.5, https://commons.wikimedia.org/w/index.php?curid=27482235

Bucoleon Palace (Constantinople) today —
Photo Credit: By Gryffindor - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=3813353