| 401. | Stippgrütze | Wikipedia audio article | 3 | |
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| 402. | Camelford water pollution incident | Wikipedia audio article | 3 | | The Incident
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| 403. | List of defunct fast-food restaurant chains | Wikipedia audio article | 3 | |
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| 404. | Manually coded English | Wikipedia audio article | 3 | Tutorial |
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| 405. | Kusumagraj | Wikipedia audio article | 3 | |
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| 406. | Physical vapor deposition | Wikipedia audio article | 3 | |
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| 407. | Constantine IX Monomachos | Wikipedia audio article | 3 | |
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| 408. | Herbert Hoover | Wikipedia audio article | 3 | |
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| 409. | Cenobitic monasticism | Wikipedia audio article | 3 | |
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| 410. | Mosbolletjies | Wikipedia audio article | 3 | |
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| 411. | Casta | Wikipedia audio article | 3 | |
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| 412. | Slave rebellion | Wikipedia audio article | 3 | |
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| 413. | Nursing in Islam | Wikipedia audio article | 3 | |
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| 414. | Cancer | Wikipedia audio article | 3 | |
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| 415. | John Adams | Wikipedia audio article | 3 | |
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| 416. | Irvin McDowell | Wikipedia audio article | 3 | |
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| 417. | Bombil fry | Wikipedia audio article | 3 | |
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| 418. | Frank Reade and his Electric Man | Wikipedia audio article | 3 | |
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| 419. | Mark III (space suit) | Wikipedia audio article | 3 | |
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| 420. | Jacques-Louis David | Wikipedia audio article | 3 | |
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| 421. | Saint Peter | Wikipedia audio article | 3 | |
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| 422. | Italy | Wikipedia audio article | 3 | |
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| 423. | Britannia Industries | Wikipedia audio article | 3 | |
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| 424. | Gothic language | Wikipedia audio article | 3 | |
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| 425. | List of World Heritage Sites in South Africa | Wikipedia audio article | 3 | |
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| 426. | Charlotte Cushman | Wikipedia audio article | 3 | |
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| 427. | Can Tho International Airport | Wikipedia audio article | 3 | |
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| 428. | Patriots (Ethiopia) | Wikipedia audio article | 3 | |
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| 429. | China National Aero-Technology Import & Export Corporation | Wikipedia audio article | 3 | Vlog |
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| 430. | Dean of the United States House of Representatives | Wikipedia audio article | 3 | |
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| 431. | Liberia | Wikipedia audio article | 3 | |
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| 432. | Iron Guard | Wikipedia audio article | 3 | | IRON GUARD
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| 433. | Balts | Wikipedia audio article | 3 | |
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| 434. | Avitus | Wikipedia audio article | 3 | |
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| 435. | Otto Wallach | Wikipedia audio article | 3 | |
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| 436. | Lydian alphabet | Wikipedia audio article | 3 | Let's Play |
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| 437. | World War I | Wikipedia audio article | 3 | |
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| 438. | Ernest Walton | Wikipedia audio article | 3 | |
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| 439. | Orissa University of Agriculture and Technology | Wikipedia audio article | 3 | Vlog |
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| 440. | Nizam's Institute of Medical Sciences | Wikipedia audio article | 3 | |
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| 441. | History of Italy as a monarchy and in the World Wars | Wikipedia audio article | 3 | |
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| 442. | William McKinley | Wikipedia audio article | 3 | |
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| 443. | Secretary of State for India | Wikipedia audio article | 3 | |
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| 444. | DNA | Wikipedia audio article | 3 | |
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| 445. | SIC Insurance Company | Wikipedia audio article | 3 | |
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| 446. | War of the Fifth Coalition | Wikipedia audio article | 3 | |
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| 447. | Connecticut Colony | Wikipedia audio article | 3 | |
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| 448. | Indian maritime history | Wikipedia audio article | 3 | |
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| 449. | George Washington (Greenough) | Wikipedia audio article | 3 | |
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| 450. | Allegorical interpretation of the Bible | Wikipedia audio article | 3 | |
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| 451. | UC Berkeley | Wikipedia audio article | 3 | |
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| 452. | Toribio de Benavente Motolinia | Wikipedia audio article | 3 | |
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| 453. | Africa | Wikipedia audio article | 3 | |
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| 454. | Trzciniec culture | Wikipedia audio article | 3 | |
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| 455. | BBC | Wikipedia audio article | 3 | |
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| 456. | Monic languages | Wikipedia audio article | 3 | |
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| 457. | Tamil script | Wikipedia audio article | 3 | |
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| 458. | Ludwig von Bertalanffy | Wikipedia audio article | 3 | Vlog |
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| 459. | Canal Defence Light | Wikipedia audio article | 3 | |
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| 460. | Paul the Apostle | Wikipedia audio article | 3 | |
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| 461. | History of Tibet | Wikipedia audio article | 3 | |
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| 462. | Directorate of Air Intelligence (India) | Wikipedia audio article | 3 | |
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| 463. | Sunda-Sulawesi languages | Wikipedia audio article | 3 | |
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| 464. | Oromo conflict | Wikipedia audio article | 3 | |
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| 465. | Metabolic theory of ecology | Wikipedia audio article | 3 | Vlog |
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| 466. | Geostrophic current | Wikipedia audio article | 3 | |
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| 467. | Piracy in the Atlantic World | Wikipedia audio article | 3 | |
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| 468. | Abdul Haq (Urdu scholar) | Wikipedia audio article | 3 | |
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| 469. | Stirling engines | Wikipedia audio article | 3 | |
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| 470. | Skanda Purana | Wikipedia audio article | 3 | |
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| 471. | Field artillery in the American Civil War | Wikipedia audio article | 3 | |
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| 472. | Stingray light tank | Wikipedia audio article | 3 | |
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| 473. | Unfederated Malay States | Wikipedia audio article | 3 | |
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| 474. | Phlogiston theory | Wikipedia audio article | 3 | Vlog |
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| 475. | Parascience | Wikipedia audio article | 3 | |
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| 476. | Meteor procession | Wikipedia audio article | 3 | |
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| 477. | Second Sino-Japanese War | Wikipedia audio article | 3 | |
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| 478. | Syneresis (chemistry) | Wikipedia audio article | 3 | |
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| 479. | National Highway 17 (India) | Wikipedia audio article | 3 | |
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| 480. | Vikas engine | Wikipedia audio article | 3 | |
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| 481. | Autobiographical novel | Wikipedia audio article | 3 | |
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| 482. | Venezuela | Wikipedia audio article | 3 | |
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| 483. | Eber-Nari | Wikipedia audio article | 3 | |
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| 484. | Scientific classification | Wikipedia audio article | 3 | |
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| 485. | Sega Genesis | Wikipedia audio article | 3 | | Sonic the Hedgehog
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| 486. | Ashbury Railway Carriage and Iron Company Ltd | Wikipedia audio article | 3 | |
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| 487. | Casa de Contratación | Wikipedia audio article | 3 | |
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| 488. | San Ildefonso, Bulacan | Wikipedia audio article | 3 | |
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| 489. | Mura language | Wikipedia audio article | 3 | |
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| 490. | Shaped Sonic Boom Demonstration | Wikipedia audio article | 2 | | Sonic Boom
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| 491. | In Defense of Global Capitalism | Wikipedia audio article | 2 | |
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| 492. | Bamboo | Wikipedia audio article | 2 | |
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| 493. | Levitation (paranormal) | Wikipedia audio article | 2 | | Paranormal
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| 494. | Biohazard | Wikipedia audio article | 2 | |
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| 495. | VLM (rocket) | Wikipedia audio article | 2 | |
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| 496. | Biocompatible material | Wikipedia audio article | 2 | |
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| 497. | Global hectare | Wikipedia audio article | 2 | |
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| 498. | A-type main-sequence star | Wikipedia audio article | 2 | |
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| 499. | Space Force (BBC radio serial) | Wikipedia audio article | 2 | |
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| 500. | Isma'ilism | Wikipedia audio article | 2 | |
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