Переведите нужно: ink people invented ink before 2500 bc . some books say that it was the chinese ,but probably the egyptians invented it at the same time. however ,the whole world knows the name of the chinese philosopher ,tien-lcheu,(2697 bc) ,who used ink to write with.at that time ink was a mixture of soot from pine smoke and lamp oil mixed with gelatine frome donkey skin, and musk. other cultures had ink too.they used natural pigments from trees,flowers and minerals.