The Silk Road in Northwest of China is the hometown of rock-color paintings. The original trace of skills of Japanese rock-color paintings can be found in Dunhuang and Kizil.

中国西北部的丝绸之路段是岩彩画的故乡，现代日本岩彩画的主要技法可以在敦煌，克孜尔找到原始的踪迹。

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Mr Irvine will return this month with golf course architect Martin Ebert and agronomist Alistair Beggs, to trace the original greens and produce a plan for the restoration.

BBC: NEWS | UK | Scotland | Golf course turns back the clock

This, he believes, will make it possible to work out which country, even which factory, supplied the original chemicals for the mustard gas - it will not be possible to trace the source of the nerve agents.

BBC: Magazine