The German Kaiser announces that he will not attend the Archduke's funeral.
A council is held at Potsdam, powerful leaders within Austria-Hungary and Germany meet to discuss possibilities of war with Serbia, Russia, and France.
^ abcdPenguin Pocket On This Day. Penguin Reference Library. 2006. ISBN 0-14-102715-0.
^The Hutchinson Factfinder. Helicon. 1999. p. 483. ISBN 1-85986-000-1.
^John C. Dove (1992). Who's Who in Germany 1992. Who's who the Internat. Red Series Verlag. p. 1061. ISBN 978-3-921220-65-8.
^Renate Tobies (5 January 2012). Iris Runge: A Life at the Crossroads of Mathematics, Science, and Industry. Springer Science & Business Media. p. 88. ISBN 978-3-0348-0251-2.