At what time was Daniel's second vision given?

Answer

"In the first year of Belshazzar king of Babylon Daniel had a dream and visions of his head upon his bed:
then he wrote the dream, and told the sum of the matters." Dan. 7:1.
NOTE - That is, in the first year of Belshazzar's office as associate king with his father
Nabonadius, or 540 BC.

In what one word is the character of God expressed?
What is the value of merely outward forms?
Of what besides a knowledge of God as Creator, is the Sabbath a sign?
When and by whom was the Council of Nice convened?
What did Charlemagne's Sunday law of 800 require?
Where did he say he would wait?
15. Because Solomon asked for wisdom rather than for long life and riches, what besides wisdom did God give him?

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