Maritime technology
Navigation technology
Gunpowder technology
The printing press
Knowledge transfer and cultural exchange

Military technology and conquest
Primary sources
Duarte Pacheco Pereira on Portuguese navigation (c. 1505)
Francesco Guicciardini on gunpowder (c. 1540)
Antonio Pigafetta on Magellan's voyage (c. 1522)
Key figures
Key events summary
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Vocabulary
Unit 4 topics
Unit 4 overview4.10Comparison of Coerced Labor Systems4.1Technological Innovations from 1450 to 17504.2Exploration: Causes and Events from 1450 to 17504.3Columbian Exchange4.4Maritime Empires Established4.5Maritime Empires Maintained and Developed4.6Internal and External Challenges to State Power from 1450 to 17504.7Changing Social Hierarchies from 1450 to 17504.8Continuity and Change from 1450 to 17504.9The Atlantic Slave Trade