Multatuli used a diary throughout his adult life, a notebook in which he kept a daily log, made notes and wrote down the name of people and the title of books. A number of these diaries have been preserved.
The permalink or permanent URL guarantees that an object can be traced back on the internet in the future, even if the name of the website or the object changes. If you want to link objects in the Memory it is advised to use the Permalink and not the URL in the address bar of your browser.