This idea was introduced by Secretary of State John Hays in 1899. The goal of this plan was to ensure that all nations had the ability to trade with China. Even though this plan referred to the ability of all nations to trade with China, the real reason behind its development was the fear of the US government being blocked out of trading with China by European countries.
Iron was a great tool that had many uses, they secured houses and could be made into swords. The working of iron melted it so you could form sturdy and strong tools.
