Subjects
- Profit --Religious aspects --Islam --Early works to 1800 1
- Pythagoras and Pythagorean school 1
- Religious life --Islam --Early works to 1800 1
- Rhesus (Legendary character)--Drama 1
- Riddah Wars 1
- Romance languages--Etymology 1
- Rome (City)--Water-supply 1
- Rome in literature 1
- Rome--Armed Forces--Finance--Early works to 1800 1
- Rome--Economic policy--Early works to 1800 1
- Rome--History--Civil War, 43-31 B.C 1
- Rome--History--Republic, 265-30 B.C 1
- Rome--Military antiquities. 1
- Rome--Military policy--Early works to 1800 1
- Saint--Sidonius Apollinaris--431 or 2-ca. 487 1
- Sallust--86-34 B.C 1
- Shafiites 1
- Shafiites --Early works to 1800 1
- Shīʻah --History --Early works to 1800 1
- Siege warfare 1
