1. http://www-groups.dcs.st-and.ac.uk/~history/
   HistTopics/Matrices_and_determinants.html
2. http://www.agnesscott.edu/lriddle/women/alpha.htm
3. http://www-groups.dcs.st-and.ac.uk/~history/
   Miscellaneous/EBlist.html
4. http://www-groups.dcs.st-and.ac.uk/~history/BiogIndex.html
5. http://www.maths.tcd.ie/pub/
   HistMath/People/RBallHist.html

Chapter 5 (page 319)
Angles

1. http://www.agnesscott.edu/lriddle/women/alpha.htm
2. http://www-groups.dcs.st-and.ac.uk/~history/
   Miscellaneous/EBlist.html
3. http://www-groups.dcs.st-and.ac.uk/~history/BiogIndex.html
4. http://www.maths.tcd.ie/pub/
   HistMath/People/RBallHist.html

Chapter 6 (page 367)
Functions

1. http://www.agnesscott.edu/lriddle/women/alpha.htm
2. http://www-groups.dcs.st-and.ac.uk/~history/
   Miscellaneous/EBlist.html
3. http://www-groups.dcs.st-and.ac.uk/~history/BiogIndex.html
4. http://www.maths.tcd.ie/pub/
   HistMath/People/RBallHist.html

Chapter 7 (page 462)
Trigonometry

1. http://www-groups.dcs.st-and.ac.uk/~history/
   HistTopics/Trigonometric_functions.html
2. http://www.agnesscott.edu/lriddle/women/alpha.htm
3. http://www-groups.dcs.st-and.ac.uk/~history/
   Miscellaneous/EBlist.html
4. http://www-groups.dcs.st-and.ac.uk/~history/BiogIndex.html
5. http://www.maths.tcd.ie/pub/
   HistMath/People/RBallHist.html

Chapter 8 (page 534)
Angle Measure

1. http://www.agnesscott.edu/lriddle/women/alpha.htm
2. http://www-groups.dcs.st-and.ac.uk/~history/
   Miscellaneous/EBlist.html
3. http://www-groups.dcs.st-and.ac.uk/~history/BiogIndex.html
4. http://www.maths.tcd.ie/pub/
   HistMath/People/RBallHist.html

Chapter 15 (page 969)
Calculus

1. www-history.mcs.st-and.ac.uk/~history/
   HistTopics/The_rise_of_calculus.html
2. http://www.agnesscott.edu/lriddle/women/alpha.htm
3. http://www-groups.dcs.st-and.ac.uk/~history/
   Miscellaneous/EBlist.html
4. http://www-groups.dcs.st-and.ac.uk/~history/BiogIndex.html
5. http://www.maths.tcd.ie/pub/
   HistMath/People/RBallHist.html