1634 The Galileo Affair by Eric Flint & Andrew Dennis (Ring of Fire)

Another alternative history book, this one takes place in Italy and focus on the religious, political and economic impact of Grantville’s appearance in the Ring of Fire on Venice.

Some young uptimers decide to free Galileo, who I learned a lot about.

Grantville also sends a diplomatic team to Venice to facilitate trade.

I also think Andrew Dennis might be an interesting author to look into