How did islam spread?

Islam mostly spread in the 14-16th century through the Silk Road. Muslim traders from Arabia would travel long distances towards East Asia and Eastern Europe and trade goods such as spices, colorful cloths, and luxury items, and with this trading of products came a trading of ideas and beliefs. Soon Muslims began expanding their religion across the Middle East, with many people considering Islam to be the true way of life. Even to this day, Islam is the second largest religion with a growing population of over 1.8 billion devout Muslims who read the Quran, pray 5 times a day, donate money to the poor, fast during Ramadan, and much more.