From Wikipedia:
Modern Times (1851 to late 1860s)
See also Modern Times (intentional community)
Modern Times was an individualist anarchist colony begun on March 21, 1851 on 750 acres (3 km²) of land on Long Island, New York, by Josiah Warren and Stephen Pearl Andrews. By contract, all land was bought and sold at cost, with 3 acres (12,000 m2) being the maximum allowable lot size. The community was said to be based in the idea of "individual sovereignty"
and "individual responsibility". There was an understanding that there
was to be no initiation of coercion, leaving all individuals to pursue
their self-interest as they saw fit. All products of labor were
considered private property. The community had a local private currency
based upon labor exchange in order to trade goods and services (see Mutualism).
All land was private property, except for alleys which were initially
considered common property but later converted to private property. No
system of authority existed in the colony: there were no courts, jails,
or police; yet, there are no reports of any problem with crime existing
there. This appears to have given some credence to Warren's theories
that the most significant cause of violence in society was most
attributable to policies and law which did not allow complete
individuality in person and property. However, the modest population of
the colony might be considered a factor in this characteristic. The
Civil War, and a gradual infiltration into the community by those who
did not share the same libertarian and economic philosophy, is said to
have contributed to its eventual dissolution. The colony's location is
now known as Brentwood, New York. Almost all of the original buildings that existed in Modern Times have been destroyed. Modern Times is given tribute at Twin Oaks,
a contemporary community of 100 members in Virginia. All Twin Oaks'
buildings are named after communities that are no longer actively
functioning, and "Modern Times" is the name of one of the multi-purpose
buildings there.
http://en.wikipedia.org/wiki/List_of_anarchist_communities