Yi Xing writing the Da Yan calendar —
Photo Credit: http://hua.umf.maine.edu/China/astronomy/tianpage/0015H_YiXing_9275_man683727bw.html

Yi Xing's Da Yan calendar —
Photo Credit: http://hua.umf.maine.edu/China/astronomy/tianpage/0015H_YiXing_9275_man683727bw.html

Yi Xing bust —
Photo Credit: Por Hans A. Rosbach - Obra do próprio, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=7469979

Plato's Alarm Clock —
Photo Credit: http://unfashionablehumanbody.blogspot.com/2009/06/platos-alarm-clock.html

President Andrew Johnson in Knight Templar regalia —
Photo Credit: http://www.greenevillelodgeno3.org/history.php

Depiction of West College, which composed the entire Williams College in its early years —
Photo Credit: By Dingdongdang56 - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=61533920

logo for Williams College —
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=46757658

Garfield with Hiram College Faculty — James A. Garfield (left), his wife Lucretia Rudolph Garfield (right) and other faculty, 1858
Photo Credit: By Unknown - Hiram College Archives, Public Domain, https://en.wikipedia.org/w/index.php?curid=22187845

Kennedy Center student union at Hiram College —
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=32789390

seal of Hiram College —
Photo Credit: By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=19292768

Historic Bentley Hall - Allegheny College — Which housed the college administration, including the Registrar and Office of the President, prior to its current renovations.
Photo Credit: By Joshtys - Own work, Public Domain, https://commons.wikimedia.org/w/index.php?curid=8046696