R
Ra, in Egyptian religion
Ra, chemical symbol
Raab
Raabe, Wilhelm
Raamah
Raamiah
Raamses
Rab
Rába
Rabanus Maurus Magnentius
Rabat
Rabaul
Rabbah
rabbi
Rabbi Ben Ezra
rabbit
rabbitbrush
rabbit fever
Rabbith
Rabboni
Rabelais, François
Rabi, Isidor Isaac
rabies
Rabin, Yitzhak
Rabinowich, Sholem
Rab-saris
Rab-shakeh
Racan, Honorat de Bueil, seigneur de
raccoon
race
racemic acid
racer
Rachab
Rachal
Rachel, in the Bible
Rachel, French actress
Rachel, Russian poet who wrote in Hebrew
Rachmaninoff, Sergei Vasilyevich
Racibórz
Racine, Jean
Racine
racing
Rackham, Arthur
Racovian Catechism
racquets
Radama I
radar
radar astronomy
Radcliffe, Ann (Ward)
Radcliffe
Radcliffe-Brown, Alfred Reginald
Radcliffe College
Radek, Karl
Radetzky, Joseph, Graf Radetzky de Radetz
Radford
Radhakrishnan, Sarvepalli
radial velocity
radiant
radiant heating
radiation
radiation chemistry
radiation sickness
radiator
Radi, Stjepan
radical, in chemistry
radical, in mathematics
Radich, Stefan
Radiguet, Raymond
Radin, Paul
radio
radioactive dating
radioactive isotope
radioactive waste
radioactivity
radio altimeter
radio astronomy
radio beacon
radiochemistry
Radio City
radio compass
Radio Free Europe
Radio Frequencies (table)
radio frequency
radiography
radioisotope
radiology
radiometer
radio range
radiosonde
radio telescope
radish
Radishchev, Aleksandr Nikolayevich
Radisson, Pierre Esprit
Raditch, Stefan
radium
radium emanation
radius
Radnorshire
Radom
radon
Rae, John
Raeburn, Sir Henry
Raeder, Erich
Rafa
Raff, Joseph Joachim
Raffet, Denis Auguste Marie
raffia
Raffles, Sir Thomas Stamford Bingley
Rafsanjani, Hashemi
raft
Ragau
Ragaz, Bad
Rages
ragged robin
Raglan, Fitzroy James Henry Somerset, 1st Baron
Ragnarok
ragtime
Raguel
Ragusa, city, Italy
Ragusa, city, Croatia
ragweed
ragwort
Rahab
Rahel
Rahimyar Khan
Rahman, Mujibur
Rahman, Tunku Abdul
Rahway
Rai’atea
Raibolini, Francesco
Raichur
Raiffeisen, Friedrich Wilhelm
Raikes, Robert
rail
railroad
Raimar, Freimund
Raimondi, Marcantonio
Raimund, Ferdinand
rain
Rainaldi, Carlo
Rainalducci, Pietro
rainbow
Rainbow Bridge National Monument
Rainbow Division
rainbow fish
Raine, Kathleen
rain forest
Rainier III
Rainier, Mount
rainmaking
Rainolds, John
rainproof fabric
rain tree
Rainwater, James
Rainy Lake
Raipur
Rais, Gilles de Laval, seigneur de
Raisin, river, United States
raisin, in botany and cooking
Rajagopalachari, Chakravarti
Rajahmundry
Rajasthan
Rajk, Laszlo
Rajkot
Rajputana
Rajputs
Rajshahi
rake
Rakhine State
Rákóczy
Rákosi, Mátyás
Rakovsky, Christian Georgyevich
Rale, Sébastien
Raleigh, Sir Walter
Raleigh
Raleigh, Fort
Ralik Chain
Rallis
Ralston, James Layton
Ram
Ram, The
Rama IV, king of Siam
Rama V, king of Siam
Rama VII, king of Siam
Rama IX, king of Thailand
Rama, in the Ramayana
Rama, in the Bible
Ramadan
Ramadi
Ramah
Ramakrishna
Ramallah
Raman, Sir Chandrasekhara Venkata
Raman effect
Ramanuja
Ramanujan, Srinivasa
Ramapithecus
Ramapo Mountains
Rama’s Bridge
Ramat Gan
Ramathaim-zophim
Ramath-lehi
Ramayana
Ramazzini, Bernardino
Rambam
Rambaud, Alfred Nicolas
Rambert, Dame Marie
rambler rose
Rambouillet, Catherine de Vivonne, marquise de
Rambouillet
Rambouillet sheep
Rameau, Jean Philippe
Ramée, Joseph Jacques
Ramée, Pierre de La
Ramelli, Agostino
Rameses
ramie
Ramillies, battle of
Ramiro I
Ramla
Ramleh
rammed earth
Ramón
ramontchi
Ramón y Cajal, Santiago
Ramos, Fidel Valdez
Ramos, Graciliano
Ramoth-gilead
Rampolla del Tindaro, Mariano
Rampur
Ramsay, Allan
Ramsay, Sir Bertram Home
Ramsay, Sir William
Ramses
Ramsey, Norman Foster
Ramsey
Ramsey of Canterbury, Arthur Michael Ramsey, Baron
Ramsgate
Ramus, Petrus
Ramusio, Giambattista
Ramuz, Charles Ferdinand
Rancagua
Rancé, Armand Jean le Bouthillier de
ranch
rancheria
Ranchi
Rancho Cordova
Rand, Ayn
Rand, the
Randall, James Garfield
Randall, Samuel Jackson
Rand Corporation
Randers
Randolph, Asa Philip
Randolph, Edmund
Randolph, Edward
Randolph, John
Randolph, Peyton
Randolph, Thomas, English diplomat
Randolph, Thomas, English poet and dramatist
Randolph
Randolph-Macon College
Randolph-Macon Woman’s College
Rangabe, Alexandros Rizos
range
Rangel, Charles
Rangoon
Rangpur
Ranjit Singh
Rank, Otto
Ranke, Leopold von
Rankin, Jeannette
Rankine, William John Macquorn
Rankine temperature scale
Rankovi, Aleksandar
Rannoch, Loch
Rann of Kutch
Ransom, John Crowe
ransom
Rantekombola
Ranters
Rantoul
ranz des vaches
Rao, P. V. Narasimha
Rao, Raja
Raoul
Raoult’s law
Rapallo
Rapallo, Treaty of, 1920
Rapallo, Treaty of, 1922
rape, territorial division, England
rape, in botany
rape, in law
Rapha
Raphael
Raphael Santi
Raphia, ancient town, Gaza Strip
raphia, fiber
Rapid City
rap music
rapid transit
Rapoport, Solomon Seinwil
Rapp, George
Rappahannock
Rapperswil
rare-earth metals
rare earths
rare gas
Raritan
Rarotonga
Ras Addar
Ras al-Khaimah
Ras at Tib
Ras Dashen
rash
Rashi
Rashid
Rashid, El
Rasht
Rasis
Rask, Rasmus Christian
Rasles, Sébastien
Rasmussen, Knud Johan Victor
raspberry
Rasputin, Grigori Yefimovich
Rassam, Hormuzd
Ras Shamra
Rastafarianism
Rastatt
rat
Ratak Chain
ratchet and pawl
Ratdolt, Erhard
ratel
ratfish
rath
Rathenau, Walther
Rathlin Island
Ratibor
ratio
rationalism
rationalization
rational number
rationing
Ratisbon
Rat Islands
ratite
Ratlam
Ratnapura
rat snake
rattan
Rattazzi, Urbano
Rattigan, Sir Terence Mervyn
Rattle, Sir Simon
rattlesnake
rattlesnake weed
Ratzel, Friedrich
Rauch, Christian Daniel
Rauma
Rauschenberg, Robert
Rauschenbusch, Walter
Ravel, Maurice
raven
Ravenna, city, Italy
Ravenna, city, United States
Ravensberg
Ravensburg
Ravi
Rawalpindi
Rawdon-Hastings, Francis
Rawlings, Jerry John
Rawlings, Marjorie Kinnan
Rawlins, John Aaron
Rawlinson, George
Rawlinson, Sir Henry Creswicke
Rawlinson, Henry Seymour Rawlinson, 1st Baron
Rawls, John
Ray, John
Ray, Man
Ray, Satyajit
ray, in zoology
ray, in physics
Rayburn, Sam
Rayleigh, John William Strutt, 3d Baron
Raymond IV, count of Toulouse
Raymond VI, count of Toulouse
Raymond VII, count of Toulouse
Raymond, count of Tripoli
Raymond, town, Canada
Raymond Berengar IV
Raynal, Guillaume Thomas François, Abbé
rayon
Rayonnant style
Raytown
Razak, Abdul
Razin, Stenka
Rb
Ré, island, France
Re, in Egyptian religion
Re, chemical symbol
reactance
reaction, chemical
reaction-formation
reaction rate
reactor, nuclear
Read, George
Read, Sir Herbert
Reade, Charles
Reading, Rufus Daniel Isaacs, 1st marquess of
Reading, city, England
Reading, cities, United States
reading, mental process
Reading, University of
Reagan, John Henninger
Reagan, Ronald Wilson
Reaiah
real estate
realism, in art
realism, in literature
realism, in philosophy
real number
Real Presence
real property
reaper
reapportionment
Reason, Age of
Réaumur, René Antoine Ferchault de
Réaumur temperature scale
Reba
rebate
rebec
Rebecca
Récamier, Juliette
recapitulation
Recared
Recceswinth
recession
Rechab
Rechabites
recidivism
Recife
reciprocal trade agreement
recitative
Recklinghausen
Reclamation, United States Bureau of
reclamation of land
Reclus, Jean Jacques Élisée
recognition
recoilless rifle
recombination
Recôncavo
reconnaissance satellite
Reconstruction
Reconstruction Finance Corporation
recorder
record player
rectifier
rectum
recycling
red algae
Red Angus cattle
Red Bank
redbird
red blood cell
Redbridge
redbud
red bug
red cedar
Red Cloud
Red Cross
Red Deer, city, Canada
Red Deer, river, Canada
red deer, in zoology
Redding
Redditch
Red Eagle
red eft
Redfield, Robert
red fir
Redford, Robert
red giant
Redgrave
Redi, Francesco
redistricting
Red Jacket
Redlands
red lead
red maids
Redmond, John Edward
Redmond
Redon, Odilon
Redonda
Redondo Beach
redox
red pepper
Red Poll cattle
Red River, river, China and Vietnam
Red River, rivers, United States and Canada
Red River Rebellion
Red River Settlement
Red Rock chicken
Redruth
Red Sea