Many countries have past history and the memories of the past stay with people as part of the culture.
Boats and gold
Because
It has allowed cultures to spread quickly and easily from one country to another.
Art is an expression. Certain elements of arts are cross cultural because all cultures have desire to express themselves with what each one has, and expressions may be similar to those of other cultures.
cultural diffusion
The beliefs vary from one culture to another.
Cultures are created via the intermingling of different peoples over time. This means that the traditions of one group might diffuse through another based on their location. Therefore, each culture will have different traits from place to place.
The location of the empire was made up of the land of the Chavin, Nazca, and Moche peoples. Possibly these cultures had intervened with one another to form the Incan culture
No-one knows for certain
The European and Muslim cultures before the crusades commonly traded with one another. This is the reason why they had large fleets of merchant ships.
In my opinion, some cultures are better than others. Cultures are handed down from one generation to another. They are learned and not always based upon equality for all involved. I would rather claim a culture that treats all living things with respect and appropriate equality than one that denies freedom of choice or human dignity.
One main problem is the homogenization of local cultures, as popular culture from dominant countries can overshadow and diminish local traditions and identities. Another issue is cultural imperialism, where certain cultures dominate and influence others, potentially leading to the loss of diversity and unique cultural expressions.