Final answer:
The longbow was replaced by the matchlock musket in the 16th century, which became a significant firearm despite early challenges.
Step-by-step explanation:
The longbow was indeed the supreme weapon during much of the 15th century. However, it was replaced by the matchlock musket in the 16th century. The matchlock musket, as depicted in Figure 4.10, was a powerful and portable firearm that was used by the Ottoman, Safavid, and Mughal armies despite its initial drawbacks such as heavy weight, slow loading times, and the difficulty of keeping gunpowder dry.
Advancements in technology eventually improved the effectiveness of handheld guns, making them viable replacements for the longbow in warfare.