Ah. I didn't notice that.
I know of Ashoka and the Maurya dynasty, but I can't honestly say I know a lot about it. Most of my knowledge centers in the British occupation. Once I gave up the idea of focusing on the Byzantines I went on an extensive search of what I would do instead. It meant trying to cover a lot of world history ... and there is a lot. I feel the biggest gaps in my knowledge are with respect to Russia and sub-Saharan Africa.
Once I began to focus back in, I had 3 offers for my MA: 1) Chinese history (specifically shipping between China and Britain), 2) Science history (specifically math education in the U.S.), and 3) American history (specifically slavery in Missouri). For reasons that didn't really relate to the topic, I chose #3 ... and then negotiated with my committee chair to slightly modify the topic.
If you ever get interested in Lutheran history, I've got some favorites to recommend:
1) History of Luther - Martin Luther as Prophet, Teacher, and Hero: Images of the Reformer, 1520-1620 by Robert Kolb
2) Theological history - From Luther to Kierkegaard: A Study in the History of Theology by Jaroslav Pelikan
3) Lutherans in colonial America - Palatines, Liberty, and Property: German Lutherans in Colonial British America by A. G. Roeber