| R Coronae Borealis star ... race, milieu, and moment |
| racemate ... radiative forcing |
| Radic, Stjepan ... Raemaekers, Louis |
| Raetia ... rail-babbler |
| railroad ... Rajaratnam, Raj |
| Rajasthan ... Ram, Jagjivan |
| Rama ... rammed earth |
| Ramnicu Valcea ... ranch |
| ranch house ... Rankin, Ian |
| Rankin, Jeannette ... Raritan River |
| Rarotonga ... Ratchaburi |
| ratchet ... Raven, The |
| Ravenna ... Rayy |
| Rayy ware ... realism |
| Reality Sandwiches ... recombinant DNA technology |
| recombination ... Red Queen |
| Red River ... Reding, Ital |
| redingote ... Reese, Pee Wee |
| Reeve's Tale, The ... Reggio di Calabria |
| Reggio nell'Emilia ... Reid, Harry |
| Reid, Harry Fielding ... relative humidity |
| relativistic mass ... remanent magnetism |
| Remarque, Erich Maria ... Renault, Louis |
| Renault, Mary ... reparations |
| repartimiento ... Reshevsky, Samuel Herman |
| Resia Pass ... retable |
| retailing ... Revelation to John |
| Revell, Viljo ... Reynaud, Paul |
| Reynolds number ... rhinitis |
| Rhinoceros ... rhupunt |
| Rhyl ... Ribot, Alexandre |
| Ribot, Theodule-Armand ... Richard Of Chichester, Saint |
| Richard of Saint-Victor ... Richmond |
| Richmond and Lennox, Frances Teresa Stuart, duchess of ... Ridler, Anne |
| Ridley, Henry Nicholas ... Riggin, Aileen |
| rigging ... ring |
| Ring and the Book, The ... Ripley, Robert LeRoy |
| Ripley, Tom ... Rive, Richard |
| river ... Road Not Taken, The |
| road race ... Robert The Devil |
| Robert the Strong ... Robins, Margaret Dreier |
| Robinson Crusoe ... Rochambeau, Jean-Baptiste-Donatien de Vimeur, comte de |
| Rochdale ... rockaway |
| Rockefeller Center ... rodent |
| rodenticide ... Roebuck, John |
| Roeg, Nicolas ... Rohlfs, Christian |
| Rohlfs, Gerhard ... Rollo |
| Rolls, Charles Stewart ... Romania: Year in Review 1998 |
| Romania: Year in Review 1999 ... Romer, Alfred Sherwood |
| Romer, Ole ... Room with a View, A |
| Roon, Albrecht Theodor Emil, Graf von ... rose |
| Rose Atoll ... Rosetta |
| Rosetta Stone ... Rosso, Medardo |
| Rostand, Edmond ... Rottweiler |
| Rotuma Island ... Rowan College of New Jersey |
| Rowan, Andrew Summers ... Royal Albert Hall |
| Royal and Ancient Golf Club of St. Andrews ... RR Lyrae star |
| RSA encryption ... Rudd, Kevin |
| Rudd, Steele ... Ruggiero |
| Ruggiero, Renato ... rune |
| Runeberg, Johan Ludvig ... Ruslan and Lyudmila |
| Russell ... Russian language |
| Russian literature ... Rutland |
| Rutland ... Ryan, Thomas Fortune |
| Ryazan ... |
|
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