I don't want to be wrong before i turn this in or else i'll get a bad grade, and look like a moron as well.
Are the years correctly in order if not help me rearrange them

((((c. Second century B.C))))) : Zhang Qian helps establish the Silk Road.
((((c. A.D. 1080:)))) Venice and Byzantium sign a treaty governing commerce
((((A.D.1158: )))) Munich, Germany, becomes center of salt trade in Europe.
((((c. A.D. 520:)))) Darius becomes emperor of the Persian Empire
((((Third century: )))) Qin Shi Huangdi standardizes weights and measures.

Question

I don't want to be wrong before i turn this in or else i'll get a bad grade, and look like a moron as well.
Are the years correctly in order if not help me rearrange them
             
((((c. Second century B.C))))) : Zhang Qian helps establish the Silk Road.
((((c. A.D. 1080:))))  Venice and Byzantium sign a treaty governing commerce
((((A.D.1158: ))))  Munich, Germany, becomes center of salt trade in Europe.
((((c. A.D. 520:))))  Darius becomes emperor of the Persian Empire
((((Third century: ))))  Qin Shi Huangdi standardizes weights and measures.

anonymous · Answer

Honestly, I would love to help you, but I have no idea.

anonymous · Answer

Oh. okay, I ALWAYS have problems with the order of the time lines. But thank you for are least looking at it ^u^

anonymous · Answer

Haha, no problem. I have problems with them as well.

anonymous · Answer

All i really know for sure is that BC is before AD and that's about it 0_O