University of St. Andrews (UK)
University of St. Andrews: Francois Viete
The University of St. Andrews offers this iography of Francois Viete. Many links are provided for more information.
Other
U of North Dakota: Fundamental Theorem of Algebra
A historical overview of the Fundamental Theorem of Algebra. Links to historic mathematicians and the development of this theorem.
Curated OER
University of St Andrews: Cardan
A timeline covering most events in the history of complex numbers.