In the 1600's, Samuel Pepys became history's most famous diarist. From 1660 to 1669, this English Member of Parliament kept a detailed diary, which was published posthumously. Through it, we gain a fascinating eye witness account of the Great Plague and the Great Fire of London. Most passages were not so monumental, however. Here's one example from July of 1663:
Up betimes to my office, and there all the morning doing business, at noon to the Change, and there met with several people, among others Captain Cox, and with him to a Coffee [house], and drank with him and some other merchants. Good discourse. Thence home and to dinner, and, after a little alone at my viol, to the office, where we sat all the afternoon, and so rose at the evening, and then home to supper and to bed, after a little musique.