NOUN (3)

1. an arrangement of events in time;

2. a record of events in the order of their occurrence;

3. the determination of the actual temporal sequence of past events;

The Collaborative International Dictionary of English v.0.48:

Chronology \Chro*nol"o*gy\, n.; pl. Chronologies. [Gr. ?; ?
   time + ? discourse: cf. F. chronologie.]
   The science which treats of measuring time by regular
   divisions or periods, and which assigns to events or
   transactions their proper dates.
   [1913 Webster]

         If history without chronology is dark and confused,
         chronology without history is dry and insipid. --A.
                                                  Holmes.
   [1913 Webster]

WordNet (r) 3.0 (2006):

chronology
    n 1: an arrangement of events in time
    2: a record of events in the order of their occurrence
    3: the determination of the actual temporal sequence of past
       events