What are the "significant contributions" of the Chinese during the Tang Dynasty?

Question

I need this for a report for our Asian studies class.

And please provide more information and details about the invention or contribution, 2 to 5 sentences will be enough.

Answer 1

they made that orange drank

Answer 2

Check out my link for more insite for innovations of the Tang Dynasty.

Beyond medicine, the Chinese of the Tang period employed complex chemical formulas for an array of different purposes, often found through experiments of Daoist alchemy. These included a waterproof and dust-repelling cream or varnish for clothes and weapons, fireproof cement for glass and porcelain wares, a waterproof cream applied to silk clothes of underwater divers, a cream designated for polishing bronze mirrors, and many other useful formulas.