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From pre-historic to modern times, engineering has played an essential role in the development of India. ==History== Beginning of engineering in the country can be dated back to pre-historic times. Solar drying of agricultural commodities is dated to a period of 6,000 BCE. Researchers have also found the evidences of engineering in Indus Valley Civilization, dating back to 4th millennium BCE. Types of engineering such as Irrigation engineering, Transportation engineering were also established during this period. Throughout the period of 3000 BCE - 1500 BCE, urban cities developed and included advanced developments for that time, such as brick houses, drainage systems, water harvesting, sanitation systems, etc. Vedas contains the information on about wells, irrigation, dams, canals, and other factors of engineering.〔 By the period of 1,800 BCE, India had started to produce Iron. In 500 BCE, the Damascus steel was originated in the country. Kallanai Dam, also known as Grand Anicut of Tamil Nadu was originally built around 2nd century CE. Many of the estimated 39,400 reservoirs of Tamil Nadu were built during the period of 500 CE - 1500 CE. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Engineering in India」の詳細全文を読む スポンサード リンク
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