Complex sentence: Julia Grace Wales (14 July 1881-15 July 1957) was a Canadian academic known for authoring the Wisconsin Plan, a proposal to set up a conference consiting of intellectuals from neutral nations who would work to find a suitable solution for the First World War.
Split into simpler sentences: Julia Grace Wales (14 July 1881-15 July 1957) was a Canadian academic known for her involvement in the First World War peace movement. She was the author of the Wisconsin Plan, a proposal to set up a conference consiting of intellectuals from neutral nations who would work to find a suitable solution for the First World War.