The New Kingdom of Egypt, early Persian kingdoms, and the iron age Vedic peoples of India, and the Chinese Shang and Zhou dynasties were notable as major civilizations of this period.
By using this as motivation for examination of the 19th and 20th century, I now have a glimmer of how these connections will become useful. In the 19th and 20th century, as Western colonial empires reached their height and were disbanded with decolonization movements, World history became less Eurocentric and histories of other peoples were researched and developed. Developing this idea will take more time.
Western Civilization was not been developed much, although I have space for Germanic and Northeast European peoples, and connections to social institutions are progressing rapidly. I have a few odd and unexpected advances such as Germanic peoples now properly including Germany. There has also been more development of Japan, Mexico, and the Philippines, and Japan now properly includes Tokyo.
Religion, government, culture, and anthropology are being developed mostly by connecting more nations.