Historians have been using his diary to gain greater insight and understanding of life in London in the 17th century. Pepys wrote consistently on subjects such as personal finances, the time he got up in the morning, the weather, and what he ate. He wrote at length about his new watch which he was very proud of (and which had an alarm, a new accessory at the time), a country visitor who did not enjoy his time in London because he felt that it was too crowded, and his cat waking him up at one in the morning. Pepys's diary is one of a very few sources which provides such length in details of everyday life of an upper-middle-class man during the seventeenth century.