Occidental College —
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=48592735

Martin Luther University of Halle-Wittenberg — Double seal of the Martin-Luther-University Halle-Wittenberg, created 1817 with the Association of Universities of Halle and Wittenberg, the “United Friedrichs-University of Halle-Wittenberg”
Photo Credit: By Unknown - Public Domain, https://commons.wikimedia.org/w/index.php?curid=13298024

Swiss Federal Institute of Technology —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=70224534

University of Ferrara —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=90389313

University of Padua —
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=50340687

University of Zurich —
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=45653647

Stanford University —
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=37764311

Princeton University —
Photo Credit: By huggo - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=32468530

Harvard University —
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=17330783

Universities —
Photo Credit: (c) 2020 ShaneBow

Friedrich I, Barbarossa — gilded bronze, ca. 1160
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=9457219