When a wealthy landowner was given full control over land in the new world, the colonies were known as "proprietary colonies" since these gave the dominating landowners far more control of the lives of the colonists.
Britain, who was at the war with France again, would seize American ships and force Americans sailors to join the British Navy (impressment). The U.S. declared war on Britain in 1812 because Britain refused to stop seizing American ships that traded with France.
President Lincoln used ethos in, "<span>I, ABRAHAM LINCOLN, President of the United States of America, and Commander-in-Chief of the Army and Navy.." to proclaim his justification and position for his Emancipation Proclamation for the legitimate action rather than just advocation for it.
For such an issue, the highest office in the country needed to act in such a way.</span>