Taj Mahal
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The jali
The octagonal marble screen or jali which borders the cenotaphs is made from eight marble panels. Each panel has been carved through with intricate piercework. The remaining surfaces have been inlaid with semiprecious stones in extremely delicate detail, forming twining vines, fruits and flowers.
The cenotaphs
Muslim tradition forbids elaborate decoration of graves, so the bodies of Mumtaz and Shah Jahan are laid in a relatively plain chamber beneath the inner chamber of the Taj Mahal. They are buried on a north-south axis, with faces turned right (west) toward Mecca.
The Taj Mahal has been raised over their cenotaphs (from Greek keno taphas, empty tomb). The cenotaphs mirror precisely the placement of the two graves, and are exact duplicates of the grave stones in the basement below.
Mumtaz's cenotaph is placed at the precise centre of the inner chamber. On a rectangular marble base about 1.5 by 2.5 m is a smaller marble casket. Both base and casket are elaborately inlaid with precious and semiprecious gems. Calligraphic inscriptions on the casket identify and praise Mumtaz. On the lid of the casket is a raised rectangular lozenge meant to suggest a writing tablet.
Shah Jahan's cenotaph is beside Mumtaz's to the western side. It is the only asymmetric element in the entire complex. His cenotaph is bigger than his wife's, but reflects the same elements: A larger casket on slightly taller base, again decorated with astonishing precision with lapidary and calligraphy which identifies Shah Jahan. On the lid of this casket is a sculpture of a small pen box. (The pen box and writing tablet were traditional Mughal funerary icons decorating men's and women's caskets respectively.)
Construction
The Taj Mahal was built on a stretch of land to the south of the walled city of Agra which had belonged to Maharajah Jai Singh: Shah Jahan presented him with a large palace in the centre of Agra in exchange. Construction began with setting foundations for the tomb. An area of roughly three acres was excavated and filled with dirt to reduce seepage from the river. The entire site was levelled to a fixed height about 50 m above the riverbank. The Taj Mahal is 180 feet tall. The dome itself measures 60 feet in diameter and 80 feet high.
In the tomb area, wells were then dug down to the point that water was encountered. These wells were later filled with stone and rubble, forming the basis for the footings of the tomb. An additional well was built to same depth nearby to provide a visual method to track water level changes over time.
Instead of lashed bamboo, the typical scaffolding method, workmen constructed a colossal brick scaffold that mirrored the inner and outer surfaces of the tomb. The scaffold was so enormous that foremen estimated it would take years to dismantle. According to legend, Shah Jahan decreed that anyone could keep bricks taken from the scaffold, and it was dismantled by peasants overnight.
A fifteen-kilometre tamped-earth ramp was built to transport marble and materials from Agra to the construction site. According to contemporary accounts teams of twenty or thirty oxen strained to pull the blocks on specially constructed wagons.
To raise the blocks into position required an elaborate post-and-beam pulley system. Teams of mules and oxen provided the lifting power.
The order of construction was
• The plinth
• The tomb
• The four minarets
• The mosque and jawab
• The gateway
The plinth and tomb took roughly 12 years to complete. The remaining parts of the complex took an additional 10 years. (Since the complex was built in stages, contemporary historical accounts list different “completion dates”; discrepancies between so-called completion dates are probably the result of differing opinions about the definition of “completion”. For example, the mausoleum itself was essentially complete by 1643, but work continued on the rest of the complex.)
Water infrastructure
Water for the Taj Mahal was provided through a complex infrastructure. Water was drawn from the river by a series of purs -- an animal-powered rope and bucket mechanism. The water flowed into a large storage tank, where, by thirteen additional purs, it was raised to large distribution tank above the Taj Mahal ground level.
From this distribution tank, water passed into three subsidiary tanks, from which it was piped to the complex. A 0.25 m earthenware pipe lies about 1.5 m below the surface, in line with the main walkway; this filled the main pools of the complex. Additional copper pipes supplied the fountains in the north-south canal. Subsidiary channels were dug to irrigate the entire garden.
The fountain pipes were not connected directly to the feed pipes. Instead, a copper pot was provided under each fountain pipe: water filled the pots allowing equal pressure in each fountain.
The purs no longer remain, but the other parts of the infrastructure have survived.
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