It was yet another tax. this one taxing stamps for mailing. but it was a fairly small tax until it hit the big businesses who bought bulk and the tax hurt.
He worked on the telescope by improveing it and he studied astronomy
The second one. Hope this helps
The correct option is "to help Justinian establish law for a thousand-year reign."
The Digest, is a legal work published in the year 533 d. C. by the Byzantine Emperor Julianus I. The Digest of Justinian came into force fifteen days after its publication. His name was given in honor of Justinian, whose most important work took the same name.