Annals stood for Amshu (which means the rays of the rising sun in Sanskrit, the language used in Nepal then), where as Udaya (the rise of the sun) would also be written with the same symbols. Bhrikuti could not have been Amshuverma's daughter simply because she would be too old to marry the Tibet Emperor. Bhrikuti was daughter of Udayadev and she had dispatched the Tibetan army to Nepal valley to reinstate Narendradev, her brother, as king in Nepal about 640 AD. Bhrikuti was instrumental in spreading Buddhism to Tibet and she later attained the status of Tara, the shakti in Mahayana Buddhism. The Chinese Buddhist monk Xuanzang, who visited India during the 7th century, described Aṃshuvarmā as a man of many talents. The original temple of Jokhang in Lhasa was modeled after a Nepali monastery design - a square quadrangle with the kwa-pa-dyo shrine at the center of the east wing, opposite to the entrance. The innermost shrine room of the world heritage Jokhang temple still displays the woodwork of Nepali origin and craftsmanship. Since then, and specially after the contributions of Araniko, a Nepali bronze caster and architect who was sent to Tibet to cast a stupa in 1265 AD, Nepali art and architecture spread over the countries like China and Japan. An inscription by Aṃshuvarmā dated to 607 AD at Tistung professes the importance of the "Aryan code of conduct" (i.e. the caste system). A great feat of architecture and engineering, the Kailashkut Bhawan, is believed to have been located about Hadigaun in Kathmandu. It had three courtyards and seven storied tiered structure with grand water works and inlay stone decorations. Amshuverma also introduced the second Licchavi era (samvat). Economically, Nepal was much developed during his time. His ruling period is known as the 'Golden Period' in the history of Nepal. Amshuverma's sister, Bhoga Devi, was married to an Indian king, Sur Sen; this marriage helped Amshuvera strengthen Nepal's relationship with India. He maintained the independence and sovereignty of Nepal by his successful foreign policy. His Sanskrit grammar, entitled Shabda Vidya, made him popular even outside the nation. The famous Chinese traveller Huen Tsang praised him in his travel account. Amshuverma's regime became a boon to the Licchavi Period so that it came to be called a golden age. He has become immortal in the history of Nepal. Most of the inscriptions of king Shivadeva I, there