How is the spread of Islam unique compared to other major world religions?

From the ninth century to the twelfth century, Islamic culture flourished and crystallized into what we now recognize as Islam. The military expansions of the earlier period spread Islam in name only; it was later that Islamic culture truly spread, with people converting to Islam in large numbers.

This spread of Islamic culture was facilitated by trade, missionaries, and changes in the political structure of Islamic society. As a result, we encounter multiple different interpretations of Islam across many different Islamic societies.

Explanation:

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.