| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
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| Romano, Giulio to Rothesay, David Stuart, duke of |
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| Romano, Giulio |
| Romanov |
| Roman Question |
| Roman religion |
| Roman roads |
| Romans |
| Romansch |
| Romansh |
| romanticism |
| Romanus I |
| Romanus II |
| Romanus III |
| Romanus IV |
| Romany |
| Romberg, Sigmund |
| Rome, city, Italy |
| Rome, cities, United States |
| Rome, University of |
| Romeoville |
| Rømer, Olaus |
| Romero, Francisco |
| Romford |
| Romilly, Sir Samuel |
| Rommel, Erwin |
| Romney, George |
| Romney |
| Romney Marsh |
| Rømø |
| Romsdalen |
| Romulo, Carlos Peña |
| Romulus |
| Romulus Augustulus |
| Ronaldinho |
| Ronaldo |
| Roncesvalles |
| Ronda |
| rondo |
| Rondon, Cândido Mariano da Silva |
| Rondônia |
| ronin |
| Ronne, Finn |
| Rønne |
| Ronsard, Pierre de |
| Röntgen, Wilhelm Conrad |
| Röntgen ray |
| rood |
| Roodepoort |
| roof |
| rook |
| Rooke, Sir George |
| Rookwood pottery |
| Roon, Albrecht Theodor Emil, Graf von |
| Roos, Johann Heinrich |
| Roosebeke, battle of |
| Roosendaal en Nispen |
| Roosevelt, Eleanor |
| Roosevelt, Franklin Delano |
| Roosevelt, Theodore |
| Roosevelt, town, United States |
| Roosevelt, river, Brazil |
| Roosevelt Dam |
| Roosevelt elk |
| Root, Elihu |
| Root, George Frederick |
| Root, John Wellborn |
| root, in botany |
| root, in mathematics |
| root crop |
| rootstock |
| rope |
| Rops, Félicien |
| roque |
| Roraima |
| Roraima, Mount |
| Rore, Cipriano de |
| Rorem, Ned |
| Røros |
| rorqual |
| Rorschach |
| Rorschach test |
| Rorty, Richard |
| Rosa, João Guimarães |
| Rosa, Salvator |
| Rosa, Monte |
| Rosalind |
| Rosamond, wife of the Lombard king Alboin |
| Rosamond, mistress of Henry II of England |
| Rosario |
| rosary |
| Rosas, Juan Manuel de |
| Roscelin |
| Rosch, Eleanor |
| Roscher, Wilhelm |
| Roscius, Quintus |
| Roscoe, Sir Henry Enfield |
| Roscoe, William |
| Roscommon, Wentworth Dillon, 4th earl of |
| Roscommon, county, Republic of Ireland |
| Roscommon, town, Republic of Ireland |
| Rose, Gustav |
| Rose, Pete |
| rose |
| Roseau |
| Rosebery, Archibald Philip Primrose, 5th earl of |
| Roseburg |
| Rosecrans, William Starke |
| Roselle |
| Roselle Park |
| rosemary |
| Rosemead |
| Rosenberg, Alfred |
| Rosenberg, Isaac |
| Rosenberg |
| Rosenberg Case |
| Rosenfeld, Morris |
| Rosenquist, James |
| Rosenthal, Moriz |
| Rosenwald, Julius |
| Rosenzweig, Franz |
| rose of Jericho |
| Rose of Lima, Saint |
| rose of Sharon |
| Roses, Wars of the |
| Rosetta |
| Rosetta Stone |
| Rosetti, Constantin |
| Roseville |
| rose window |
| rosewood |
| Rosh |
| Rosh ha-Shanah |
| Rosicrucians |
| rosin |
| rosinweed |
| Rositten |
| Roskilde |
| Roslavl |
| Roslyn Heights |
| Rosminians |
| Rosmini-Serbati, Antonio |
| Ross, Alexander |
| Ross, Barney David |
| Ross, Betsy |
| Ross, Edward Alsworth |
| Ross, George |
| Ross, Sir George William |
| Ross, Harold Wallace |
| Ross, Sir James Clark |
| Ross, Sir John |
| Ross, John |
| Ross, Robert |
| Ross, Sir Ronald |
| Ross and Cromarty |
| Rossbach |
| Ross Dam |
| Rosse, William Parsons, 3d earl of |
| Rosselli, Cosimo |
| Rossellini, Roberto |
| Rossellino, Antonio |
| Rossetti, Christina Georgina |
| Rossetti, Dante Gabriel |
| Rossetti, Gabriele |
| Rossi, Aldo |
| Rossi, Pellegrino Luigi Edoardo, Conte |
| Rossini, Gioacchino Antonio |
| Ross Island |
| Rossiter, Thomas Pritchard |
| Ross Lake National Recreation Area |
| Rosso, Il |
| Rosso, Medardo |
| Rosso di San Secondo, Piermaria |
| Ross Sea |
| Rostand, Edmond |
| Rostenkowski, Dan |
| Rostock |
| Rostopchin, Feodor Vasilyevich, Count |
| Rostov |
| Rostov-na-Donu |
| Rostovtzeff, Michael Ivanovich |
| Rostow, Eugene Victor Debs |
| Rostow, Walt Whitman |
| Rostropovitch, Mstislav |
| Roswell |
| Roszak, Theodore |
| rotary engine |
| Rotary International |
| rotation of crops |
| Rotblat, Sir Joseph |
| rotenone |
| Roth, Cecil |
| Roth, Frederick George Richard |
| Roth, Joseph |
| Roth, Philip |
| Rothamsted |
| Rothenburg ob der Tauber |
| Rothenstein, Sir William |
| Rotherham |
| Rothermel, Peter Frederick |
| Rothermere, Harold Sidney Harmsworth, 1st Viscount |
| Rothesay, David Stuart, duke of |
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| | | The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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