The flying shuttle invented by john kay reduced the time needed to do what?

The flying shuttle invented by John Kay greatly reduced the time that was needed to weave. It warped threads faster over a larger piece of cloth, and therefore saved labor.

The league of nations was found in 1919 to keep peace after world war l.but it failed to prevent world war ll in 1939,so in 1945 the nations of the world set up a new organization,the united state (un).since then, the un has encouraged international cooperation and worked to resolve conflict