If you are into alternative history, Eric Flint does an optimistic, entertaining and lighthearted take on both Ancient Rome and the 17th century. The first boo

If you are into alternative history, Eric Flint does an optimistic, entertaining and lighthearted take on both Ancient Rome and the 17th century. The first book from the 17th century series, 1632, is downloadable for free from Baen books.