2019 Read Harder Challenge: An Alternate History Novel

From the January 4, 2019 article "READ HARDER: AN ALTERNATE HISTORY NOVEL" by Tirzah Price and the May 25, 2018 article "WHAT IF? 15 GREAT ALTERNATE HISTORY BOOKS AND SERIES" by Teresa Preston.
"Humankind loves to boil down big historical events into a game of "what if?" What if Napoleon won Waterloo? What if the British Empire never fell? What if an African nation beat Europeans to steam technology? And some authors take this game even further by asking: What if dinosaurs or zombies were around during the Civil War? What if Darwin mastered genetic engineering? What if your reality could diverge into two paths? Alternate history novels are exciting explorations that show off an author's imagination, even for readers who may not normally read speculative fiction, which makes this a fun challenge for Read Harder 2019!"