Gisela of Friuli —
Photo Credit: By Odejea - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=74842486

Berengar swears fealty to Otto — Otto I, Holy Roman Emperor's victory over Berengar, winning Italy, drawing in the Chronicle of Otto von Freising (Manuscriptum Mediolanense), Schäftlarn, before 1177
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=65754

Berengario II —
Photo Credit: By Ioanne Palatio - Libro Aquila Saxonica Sub Qua Imperatores Saxones, Public Domain, https://commons.wikimedia.org/w/index.php?curid=27295341

Pope Leo VIII — In the Basilica of Saint Paul Outside the Walls, Rome
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=42553784

Pope Benedict V — In the Basilica of Saint Paul Outside the Walls, Rome
Photo Credit: Public Domain, https://commons.wikimedia.org/w/index.php?curid=42553762

Baptism of King Guthrum (Guthorm) — A Victorian representation
Photo Credit: Doyle, James William Edmund (1864) "Alfred" in A Chronicle of England: B.C. 55 – A.D. 1485, London: Longman, Green, Longman, Roberts & Green, pp. p. 52 Retrieved on 12 November 2010., Public Domain, https://commons.wikimedia.org/w/index.php?curid=12039383

England in 878 — Shows kingdoms of Alfred and Guthrum
Photo Credit: By Hel-hama - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=19885072

Edith of England — Detail from a Gothic statue in Magdeburg Cathedral assumed to represent Edith
Photo Credit: By User:Acoma - Own work, CC BY 3.0, https://commons.wikimedia.org/w/index.php?curid=8296257

1900-1st-Antikythera-expedition —
Photo Credit: https://aristotleguide.wordpress.com/2016/04/11/the-antikythera-shipwreck/

1976-Antikythera-Cousteau —
Photo Credit: https://aristotleguide.wordpress.com/2016/04/11/the-antikythera-shipwreck/

Antikythera mechanism (Fragment A – front) —
Photo Credit: By No machine-readable author provided. Marsyas assumed (based on copyright claims). - No machine-readable source provided. Own work assumed (based on copyright claims)., CC BY 2.5, https://commons.wikimedia.org/w/index.php?curid=469865