To fight malaria, this former royal estate helped move quinine-producing cinchona plants from South America to India

The royal estate in question is Kew Gardens, located in London, England. Officially known as the Royal Botanic Gardens, Kew, it has a rich history dating back to the 18th century and is renowned for its extensive collection of plants from around the globe.

In the 19th century, Kew Gardens played a significant role in the fight against malaria. They helped facilitate the transfer of cinchona trees, native to South America and a natural source of quinine, to British colonial territories including India. Quinine is a crucial ingredient in treatments for malaria, so this transfer had important implications for global health.