How Power Exerted by Leaders over Land and People Change over Time from 600 C.E. to 1450 C.E.

Taizong also improved the YouTest system that you can get the opportunity to gain a position within the government regardless of who you are from. Taizong also improved relations with Europe, Africa and Asian countries; they exchanged spinach, tulip and pepper in exchange for Chinese tea, paper, silk and porcelain. During his reign, he is called "the law of control", it is still thought to be the golden age of Chinese history, and it is used as a model for many leaders like Xuanzong.

The major trading factors between Africa and Eurasia changed during the 300s and 1450s, but several factors remained unchanged. Trade routes around 300 BC are mainly between Europe and North Africa. The way they changed by 1450 was that they expanded south and west. By 1450, these trade routes passed through West Africa, Sub-Saharan Africa and the Indian Ocean. One factor that did not change during this period was that the coast of northern Africa was always involved in African trade with other Eurasia.

From about 300 AD to about 1450 AD, the trade network between Africa and Eurasia was very limited due to the establishment of Islam and the trade of Africa - Eurasia, but it soon became more advanced. However, monsoon is always a factor in these overseas transactions. Through the contribution to the Africa - Eurasian world of trade networks, during this time the trade network between Africa and Eurasia is still very important. In the year 622 AD, Islam was established to promote the prosperity of trade. If Islam is founded, Muslims will link the Swahili city state to the wider Indian Ocean, so trade will increase. It is an important part of the trade route between Africa and Eurasia. Swahili In the southern part of the world, the birth of Islam, the influence of the Indian Ocean trade extended to the inside of Africa. Sub-Saharan trade brought Islam to East Africa, triggered the writing of sentences, enhancement of education and commerce, and changes in political structure

Between 100 BC and 600 BC, Rome experienced various cultural and political changes as a result of the growth of the Christian church, the invasion of the Germanites, and the expansion of their cultural influence. In spite of many changes, the Byzantine Empire maintained Roman cultural and political customs for more than 1000 years. Looking at the cultural aspect of Rome, Rome is a multiethnic empire in the middle of Pax Romana in the 100th century BCE. Men dominate most aspects of society, women are regarded as second-class citizens, and slavery is also prominent in the empire. Furthermore, the entire empire is polytheistic, the emperor is the leader of religion, and believe that Christianity is a cult. But over time there are many reasons for change, such as Christian growth, the power of the Christian church rising, and the cultural influence of the Germans increased. To 600 ° C