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532 CONSTANTINOPLE
Hagia Sophia was rebuilt on the site of a
centuries-old basilica in Constantinople
(Turkey) by Emperor Justinian I. As the
capital of the eastern Roman Empire,
Constantinople became the leading
European power while Rome declined.
About 1 million people lived in Constanti-
nople in the 5th century, second only to
Baghdad.
c. 700–1400 HOHOKAM CANALS
The Hohokam peoples of southern
Arizona diverted water from the Salt,
Gila, and San Pedro rivers in a complex
system of irrigation canals that enabled
the cultivation of fi elds more than 16
miles distant from their water source.
The more than 250 miles of canals were
created with simple tools and human
power.
c. 750–1035 VIKING AGE
The constant threat of Viking raids on
northern Europe, and the Viking con-
quests of Britain during the 9th and
10th centuries, made the landscape
unsafe and contributed to the medieval
European mind-set of seeking protection
from nature.
752 GREAT BUDDHA
The Great Buddha, or Daibutsu, was
constructed by Emperor Shomu at Nara
(Japan). Buddhism spread to Japan
from India by way of China and Korea,
assimilating elements of folk religions
along the way.
836 SAMARRA (IRAQ)
The palace city of Samarra, with its
iconic spiral minaret at the Grand
Mosque, was the administrative head-
quarters of the Abbasid caliphs for a
brief period in the 9th century. Archeolo-
gists have found evidence of irrigation
channels at Samarra, suggesting the
existence of palace gardens.
c. 1000 SERPENT MOUND
Over a quarter mile long, the Serpent
Mound, built by the Fort Ancient culture
of Ohio, is the largest animal effi gy in
existence. Snakes were signifi cant in
Native American mythology, but the
purpose of Serpent Mound confounds
archeologists to this day.
1070 BAYEUX TAPESTRY
The Bayeux tapestry was commissioned
by Bishop Odo (half-brother of William
the Conqueror) to illustrate the events
surrounding the Norman invasion of
England in 1066. The 230-foot-long
embroidered cloth depicts William’s vic-
tory at the Battle of Hastings, which led
to the imposition of the European feudal
system on Britain.
1074–1291 CRUSADES
The fi rst crusades were initiated by Pope
Urban II to liberate Christian holy sites
from Muslim control and to support
the Byzantine emperor against threats
from the Islamic empire. Although the
crusades resulted in an important
exchange of information and knowledge
between East and West, a wave of
violence and persecution ensued, which
was particularly devastating to Jewish
communities.
1088 FIRST UNIVERSITIES
The University of Bologna, founded
around the study of rhetoric, grammar,
and logic, later expanded its curriculum
to include philosophy and mathemat-
ics—subjects fi rst developed by the
Arabs and Greeks. In the 12th century,
Frederick I (Barbarossa) declared Euro-
pean universities free from the infl u-
ences of church and state, establishing
an enduring model of scholarship that
thrived during the Renaissance.
c. 1100–1200 CATHEDRALS
During the surge of large-scale cathe-
dral building projects in Europe, new
architectural forms such as the ribbed
vault, pointed arch, and fl ying buttress
emphasized verticality and defi ned the
Gothic style. The focus was on the
heavenly realm above, rather than the
earthly realm below.
c. 1125 ANGKOR WAT
The Khmer empire of Cambodia had its
capital at Angkor from the 9th–15th
centuries. The temple complex called Ang-
kor Wat was symbolic of Hindu cosmol-
ogy, with its concentric canals, terraces,
galleries, and central temple. The temple’s
roof structure represented sacred Mount
Meru, an axis mundi between sacred and
profane worlds.
c. 1200 ANASAZI
The cliff dwellings at Mesa Verde, Colo-
rado, are typical of the highly organized
Anasazi culture of the American South-
west. Construction peaked at around
1200 CE. The mesas and cliffs were oc-
cupied by the Anasazi for over 700 years,
but completely abandoned by 1276.
c. 1200–1300 THE “SHAMBLES”
The dense fabric of a medieval city
refl ected its commercial function. Space
was at a premium; workshops and living
quarters encroached on public space,
creating the intimate streetscape that
characterizes medieval European cities
today.
1260 FLOWERY MEAD
Albertus Magnus wrote a gardening man-
ual, De Vegetabilibus et Plantis, based on
ancient Roman and contemporary English
treatises. Albertus also described a
pleasure garden and included detailed in-
structions for creating a “fl owery mead.”
1305 VILLA MANAGEMENT
Piero de’ Crescenzi wrote Liber Ruralium
Commodorum, borrowing extensively from
Albertus Magnus. His practical advice on
agricultural estate management at vari-
ous scales was particularly valuable to
villa designers of the Italian Renaissance.
1325 AZTEC CAPITAL
The Aztec capital of Tenochtitlan (Mexico
City) was founded where, according to
legend, an eagle perched on a cactus
growing from a rock near a spring.
1346 BLACK DEATH
The plague struck Europe, killing one-third
to one-half of the population. The epi-
demic spread along active trade routes.
People abandoned the city and sought
refuge in the countryside.
MIDDLE AGES / A BRIEF CHRONOLOGY