Final answer:
The Age of Imperialism began in the 19th century, during the 1800s, with European empires and later other countries expanding globally for various political, cultural, and economic reasons.
Step-by-step explanation:
The Age of Imperialism
The Age of Imperialism began in the 19th century, specifically during the 1800s. This period is characterized by the rapid expansion of European empires and later other world powers such as the United States and Japan. The political, cultural, and economic motives for imperialism in the 19th century included the desire for increased power and influence, the belief in cultural superiority, and the demand for natural resources and new markets for industrial products. Nations such as Britain, France, Germany, and Japan were intensely competing for colonies and spheres of influence, particularly in Africa, Asia, and the Pacific. The impact of this period of imperialism continues to shape international relationships and national borders today.