What metal revolutionized agriculture?

The metal that revolutionized agriculture is iron. The introduction of iron tools marked a significant advancement in agricultural practices. Iron plows, for example, were much stronger and more effective than their wooden predecessors, allowing farmers to till tougher soils and increase agricultural productivity. This capability led to enhanced farming techniques, which ultimately contributed to the growth of crop yields and the efficiency of food production.

Iron's durability and ability to be sharpened to a fine edge made it especially valuable for various agricultural implements like sickles and hoes. The widespread use of iron tools transformed farming by enabling more intensive cultivation of land, thereby supporting larger populations and contributing to the rise of civilizations.

Steel, while an improvement on iron and crucial in later agricultural advancements, came after the initial revolution attributed to iron. Aluminum and copper also had their uses in agriculture, but neither significantly transformed farming practices in the way that iron did during major historical periods.