римский свинец по годам https://slatestarcodex.com/blog_images/cycles3.jpg

summary https://slatestarcodex.com/blog_images/cycles6.PNG

религиозные постройки https://slatestarcodex.com/blog_images/cycles4.png

Index Of Political Instability, which “combines measures of duration, intensity, and scale of political instability events, coded by a team of professional historians”: https://slatestarcodex.com/blog_images/cycles5.png

китайские циклы https://slatestarcodex.com/blog_images/cycles0.JPG

Book Review: Secular Cycles https://slatestarcodex.com/2019/08/12/book-review-secular-cycles/