One way in which the ming dynasty in the early 1400s and the spanish monarchy in the late 1400s are similar is tha both goverments

The correct answer is supported the expansion of overseas trade

Both governments invested a lot into exploration and establishing trading routes and trading outposts worldwide because they understood how much their country could profit from such business endeavors. They had famous explorers who traveled the world in search of new trading routes and in search of new trading partners.