To whom did this promised seed refer?

Answer

"Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of
one, And to thy seed, which is Christ." Gal. 3: 16.

In view of the curse upon this creation, what has God promised?
With whom did sin originate?
What would make the death of Christ in vain?
Through whom was a restoration of the lost dominion promised to Abraham?
Where was Daniel at this time?
Through whom do we have sanctification?
When Christ sent out the seventy, what did He tell them to do in the cities whither they went?

Questions & Answers are from the book Bible Readings for the Home Circle