<span>First of all in this time frame between 1890-1920 would have to include the First World War, also known as the Great War. More then likely both men would have had the same opinion of most men at the time about American Imperialism which was they should not be in a war that doesn't effect them but mostly Europe and should have kept to themselves, honestly.</span>
artifacts, foot prints, or even journals
Antonie Philips van Leeuwenhoek FRS was a Dutch businessman and scientist in the Golden Age of Dutch science and technology. A largely self-taught man in science, he is commonly known as "the Father of Microbiology", and one of the first microscopists and microbiologists.
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It would be a "courtier" that is a term used to describe a person who served a ruler or prince, although it should be noted that it has more of an association with kings and queens than with princes.