Which of the following is a secondary source? -Purple Heart awarded to Corporal Benjamin A. Taube in 2003
-Van Gogh Self-Portrait
-Autobiography of Benjamin Franklin
-Public School History Textbook of England and Canada

Public School History Textbook of England and Canada

Explanation:

Secondary sources are simply those sources that take information from a primary source. A history school textbook is a secondary source because it adds up historical information from either primary sources, or even from other secondary sources.

A history school textbook may take information from  other textbooks, from scientific papers, or from primary sources like letters or documents from the era being studied.

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories

lincoln presided over the union victory in the american civil war, which dominated his presidency. a former whig, lincoln ran on a political platform opposed to the expansion of slavery in the territories. his election served as the immediate impetus for the outbreak of the american civil war.