Conversation so far:
What were his views on diplomacy?
When the war started Seward turned his attention to making sure that foreign powers did not interfere in the conflict.
How did he make sure they didn't interfere?
Seward sent word to the American representatives abroad that the U.S.
would become party to the Paris Declaration Respecting Maritime Law of 1856.
What else did he do in politics?
Seward was willing to wage war against Britain if it did, and drafted a strong letter for the American Minister in London.
What were his views about the war?
CANNOTANSWER.
What other important things did he do?
U.S.
and Britain soon improved; in April 1862, Seward and Lyons signed a treaty they had negotiated allowing each nation to inspect the other's ships for contraband slaves.
Are there any other interesting things mentioned?
In November 1862, with America's image in Britain improved by the issuance of the preliminary Emancipation Proclamation.

Question: What happened in November 1862?
Self-contained rewrite: What happened in November 1862 together with the issuance of the preliminary Emancipation Proclamation?