Computer technology has yet to redefine how historians conceive the pa
st. This article shows that a computer database is a better metaphor f
or antebellum legal activity than the leading cases scholars usually p
resent to their students. A database can present a picture of an islan
d community's determinedly local peculiarities better than data struct
ured by a researcher's assumption that, within a national or even worl
d context, one neighborhood is much the same as another. In the future
, computers will allow scholars to disaggregate the past for their stu
dents, making comprehensible the decentralized reality of traditional
society.