Ancient kingdoms that existed in the Kathmandu valley are found to have made use of some clever technologies in numerous areas such as architecture , agriculture , civil engineering , water management , etc . The Gopals and Abhirs , who ruled the valley up until 1000 BC , used temporary materials for construction such as bamboo , hay , timber , etc . The Kirat period ( 700 BC – 110 AD ) employed the technology of brick firing as well as produced quality woolen shawls . Similarly , stupas , idols , canals , self-recharging ponds , reservoirs , etc. , constructed during the Lichhavi era ( 110 AD – 879 AD ) is intact to this day , which manifests the ingenuity of the traditional architecture . Moreover , the Malla period ( 1200 AD – 1768 AD ) further saw an impressive growth in architecture , comparable with the advanced contemporary nations . An archetypal example of Malla architecture is Nyatapola , a five-storied , 30-meter tall temple in Bhaktapur , which has strangely survived at least four major earthquakes , including the April 2015 Nepal earthquake
April 2015 Nepal earthquake
April 2015 Nepal earthquake
Science and technology in Nepal