This is a collection of articles and essays I've written over the past few years. I enjoy reading; and occasionally I come across facts or ideas that I write down, to better understand and remember them. Depending upon how much time I have, these articles might be very cursory, or somewhat detailed. Since they are written with my own context in mind, they are not necessarily designed for the general reader. I make no guarantees about the accuracy of any information you find on these pages. This is just my understanding of the subjects. I do not claim to be an expert at any of these subjects. Use this information at your own risk. My interests include history, science, economics, and philosophy. I have tried to categorize the articles into broad categories (see menu above), but some cross-category articles might be filed under a single category. Links on these pages are categorized as local and external. Local links are in red, and will open in the same tab of your browser (unless it says right after the link that it will open in a new tab). External links are in blue, and will open in a new tab. I also have a blog where I write about shorter notes on some of these topics, as well as politics, philosophy and current affairs.