The surveyor's chain and America
Enlightenment ideals, land speculation
and geometry intersect
Reviewed by Richard Di Dio
Measuring America
How an Untamed Wilderness Shaped the United States and Fulfilled
the Promise of Democracy
By Andro Linklater
Walker. 310 pp. $26
For those confused about the difference between a "fifth" and
"three-quarters of a liter" of Scotch, imagine purchasing libations
in 18th-century America. After all, a Boston brewer's hogshead
of beer, with two cooms, four kilderkins, eight rundlets, or
64 gallons, differed in size from a Pennsylvania hogshead, which
in turn changed depending on whether beer was sold inside or
outside an inn.
In Andro Linklater's remarkable Measuring America, attempts
to standardize measurement units provide the backdrop to the
development of the early American republic. Weaving a history
of eccentric surveyors with Jeffersonian philosophy, Linklater
suggests that America's democracy resulted from the interplay
of Enlightenment ideals, land speculation and utilitarian geometry.
In a case of measurement driving manifest destiny, the division
of the United States into sellable parcels of land first required
standardized units for land areas. The size of an acre was widely
accepted as a result of the surveyor's chain, a 22-yard metal
chain invented by Welshman Edmund Gunter in 1607. With this
chain length, a plot 10 chains long by one chain wide equaled
one acre.
In the 1783 Treaty of Paris, Britain ceded 18 million acres
to its former colonies. With significant war debt, the nascent
U.S. government was forced to survey and sell this territory.
As a member of the Confederation Congress, Thomas Jefferson
was a passionate believer in land ownership as necessary for
democracy. He proposed that America be surveyed and mapped as
a series of squares forming a large grid. The square was practical
because it was easily subdivided. It was also a symbol for Jefferson
of the balance among the executive, legislative and judicial
branches, and a Bill of Rights for the people.
Adopting Jefferson's plan for mapping the new territory, Congress
passed the Ordinance of 1785, decreeing that land be divided
into 36-square-mile townships with four square miles in each
township set aside for government and education. Another ordinance
in 1787 stipulated how new states would be formed. Slavery was
banned in the new states and citizens guaranteed trial by jury
and religious freedom. After this, settlers and surveyors made
their way west acquiring land by legitimate sales and inevitable
scams, extending the surveyed boundaries of America to the Pacific
by the 1850s.
Measuring America argues that the ordinances passed
by Congress in 1785 and 1787 were transformative because the
democratic ideals stipulated in them guaranteed "for the first
time [that] an American state was to grow up around an entirely
American structure of government and an American Set of Principles."
Just as measurement standards led to the nation's physical growth,
these American principles are standards that allow the nation
to grow democratically.
Because Gunter's chain was used to measure America, the United
States did not accept the metric system (developed in France
in 1790). Ironically, in 1783 Jefferson proposed a new set of
standards that would have given the United States the first
decimal measurement system, perhaps obviating the creation of
the metric system. Now the United States does not share measurement
standards with the rest of the world, with potential ramifications
for the growth of a global democracy.
Linklater, a Scottish writer and journalist, writes that he
fell in love with the shape of America, flying over "the spectacular
grid of city blocks, the squared-off American Gothic farms,
and the long, straight section roads that caught the imagination
of Kerouac." Measuring America gives the reader a new
appreciation for the views out of an airplane window, and a
reason to marvel at how our young country could have achieved
such a coherent plan on a continental scale.
Richard Di Dio
teaches mathematics and physics at La Salle University.
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