MYSTERIES OF THE EQUILATERAL TRIANGLE - HIKARI Ltd

6 History
Figure 1.11: Chinese Window Lattices [91]
made of a decorative wooden lattice with a sheet of rice paper glued to the inside
in order to block the draft while letting in the light. Iconographic evidence
traces such lattices all the way back to 1000 B.C. during the Chou Dynasty.
They reached their full development during the Qing Dynasty beginning in
1644 A.D. when they began to display a variety of geometrical patterns [217].
Figure 1.11 displays two such examples with an equilateral triangular motif
[91].
The Three Pagodas of Chongsheng Monastery are an ensemble of three
independent pagodas arranged at the vertices of an equilateral triangle located
near the town of Dali in the Yunnan Province of China (Figure 1.12). Unique
in China, legend has it that the Three Pagodas were built to deter natural
disasters created by dragons [333]. The main pagoda, known as Qianxun
Pagoda, was built during 824-840 A.D. by King Quan Fengyou of the Nanzhao
state. Standing at 227 feet, it is one of the highest pagodas of the Tang Dynasty
(618-907 A.D.). This central pagoda is square-shaped and is composed of
sixteen stories, each story with multiple tiers of upturned eaves. There is a
carved shrine containing a white marble sitting Buddha statue at the center
of each facade of every story. The body of the pagoda is hollow from the
first to the eighth story and was used to store sculptures and documents. The
other two sibling pagodas, built around one hundred years later, stand to
the northwest and southwest of Qianxun Pagoda. They are both solid and
octagonal with ten stories and stand to a height of 140 feet. The center of
each side of every story is decorated with a shrine containing a Buddha statue.
During the Edo period (1603-1867), when Japan isolated itself from the
western world, the country developed a traditional Mathematics known as