My other websites:
History of Logic from Aristotle to Gödel by Raul Corazzon | e-mail: rc
This site is for users that cannot see properly the Main Site (www.historyoflogic.com) because they have an older browser (desktop or mobile); the content is identical, but the design is easier.
This website can also be downloaded as ebook or PDF:
Ancient Chinese Logic (a survey of contemporary studies)