I read quite a bit of non-fiction history. Here is a list of those from the last 18 months or so that I found decent. It is a varied list in subject matter.

Blood Feud: The Hatfields and the McCoys: The Epic Story of Murder and Vengeance by Lisa Alther

Harold: The Last Anglo-Saxon King by Ian W. Walker

The Dark Defile: Britain's Catastrophic Invasion of Afghanistan, 1838-1842 by Diana Preston

Lincoln for President: An Unlikely Candidate, an Audacious Strategy, and the Victory No One Saw Coming by Bruce Chadwick

Ghost on the Throne: The Death of Alexander the Great and the War for Crown and Empire by James Romm

Destiny Disrupted: A History of the World Through Islamic Eyes by Tamim Ansary

Journey to a Revolution: A Personal Memoir and History of the Hungarian Revolution of 1956 by Michael Korda

Crowded with Genius: The Scottish Enlightenment: Edinburgh's Moment of the Mind by James Buchan

The Demon Under the Microscope: From Battlefield Hospitals to Nazi Labs, One Doctor's Heroic Search for the World's First Miracle Drug by Thomas Hager

The Alchemy of Air: A Jewish Genius, a Doomed Tycoon, and the Scientific Discovery That Fed the World but Fueled the Rise of Hitler by Thomas Hager

Our Bones Are Scattered: The Cawnpore Massacres and The Indian Mutiny Of 1857 by Andrew Ward

The Slaves' War: The Civil War in the Words of Former Slaves by Andrew Ward

Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of his Time by Dava Sobel

Last Manchu by Henry Pu Yi

The Clockwork Universe: Isaac Newton, the Royal Society, and the Birth of the Modern World by Edward Dolnick

Prisons and Patriots: Japanese American Wartime Citizenship, Civil Disobedience, and Historical Memory by Cherstin Lyon