Wikimedia timeline attribution

"Lila Tretikov April 2014 (5) crop" by Lane Hartwell on behalf of the Wikimedia Foundation is licensed under CC-BY-SA 3.0.
"Sumana Harihareswara 021 - Berlin 2011" by Guillaume Paumier is licensed under CC-BY 3.0.
"Jessie Wild 008 - Wikimedia Foundation Oct11" by Guillaume Paumier is licensed under CC-BY 3.0.
"Steven Walling 016" by Guillaume Paumier is licensed under CC-BY 3.0.
"Sicore, Damon 2014" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Brandon Harris-9992-2" by Vgrigas is licensed under CC-BY-SA 3.0.
"Neagu, Emanuela July 2014" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"03 Chris McMahon - Wikimedia Foundation 04" by Guillaume Paumier is licensed under CC-BY 3.0.
"Young, Gayle September 2014" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Anasuya Sengupta March 2013" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Gilbey, Terence March 2015" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Kourosh Karimkhany- March 2015" by Jkim (WMF) is licensed under CC-BY-SA 4.0.
"Moeller, Erik November 2014" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"HFung April 2010 wikimedia 03 10 841" by Lane Hartwell on behalf of the Wikimedia Foundation is licensed under CC-BY-SA 3.0.
"Maryana Pinchuk 007 - Wikimedia Foundation Oct11" by Guillaume Paumier is licensed under CC-BY 3.0.
"Zimmerman, Jared June 2013" by Myleen Hollero is licensed under CC-BY 3.0.
"Deubner, Chip Sept 2013" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Moran, Wes April 2015" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Douglas, James November 2014" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Fabrice Florin" by Matthew (WMF) is licensed under CC-BY-SA 3.0.
"Schloeder, Carolynne Aug 2013" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Everett, Nik June 2013" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Bamba, Vibha Feb 2014" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Dineva, Boryana September 2015" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Beaudette, Philippe 4.11.2013" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Garfield Byrd 003 - Wikimedia Foundation Oct11" by Guillaume Paumier is licensed under CC-BY 3.0.
"Dr. James Heilman" by VGrigas (WMF) is licensed under CC-BY-SA 3.0.
"Arthur Richards 005 - Berlin 2011" by Guillaume Paumier is licensed under CC-BY 3.0.
"Kelly Battles - January 2016 by Myleen Hollero" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Arnnon Geshuri - January 2016 by Myleen Hollero" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Ventura, Sylvia December 2015 01" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"María Sefidari" by LauraHale is licensed under CC-BY-SA 3.0.
"Villa, Luis 4.11.2013" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Siko Bouterse-8" by Matthew (WMF) is licensed under CC-BY-SA 3.0.
"Koval, Anna Aug 2013" by Myleen Hollero is licensed under CC-BY-SA 3.0.
"Os Keyes" is released under CC0.
"Maher, Katherine April 2014" by Myleen Hollero is licensed under CC-BY-SA 3.0.