2) 6. Other Regions in West Africa. 2001. The Encyclopedia of World History
...system and a powerful military. Their forces raided the middle Niger region between the 1430s and 1480s in an attempt to fill the political vacuum left after the...

3) Angelico, Fra. The Columbia Encyclopedia, Sixth Edition. 2001
...that he soon adopted Masaccio's advances in spatial conception. Critics have assigned to the 1430s such works as the Annunciation (Cortona); Coronation of the Virgin...

4) Gutenberg, Johann. The Columbia Encyclopedia, Sixth Edition. 2001
...a partnership in which he taught his friends his secret profession of printing in the 1430s. He lived in Strasbourg for some years, and he may have made his great...

5) b. Mainland Southeast Asia. 2001. The Encyclopedia of World History
...trade which, at this time, benefited from China's commercial initiatives. 12 By the 1430s, Angkor was finally abandoned. Rather than a dramatic collapse, it was more...