Which european power was able to purchase a valuable island with a few toys

The Dutch

Explanation:

It is said that the Dutch were able to purchase Long Island for a very small sum of money from the Native Americans. This small sum was not paid in currency, but with objects, including shirts, cloth, gunpowder, socks, duffel, awls, muskets, kettles, lead, axes, knives and glass beads. However, the details of this transaction are unclear, as no deed is left to account for them.

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

may i ask which amendments?