Today:
Welcome to this week's instalment of /r/AskHistorians' Sunday Digest (formerly the Day of Reflection). Nobody can read all the questions and answers that are posted here, so in this thread we invite you to share anything you'd like to highlight from the last week - an interesting discussion, an informative answer, an insightful question that was overlooked, or anything else.
I don't often do this, but I'm quite happy with my answer on Anglo-Saxon contact with Byzantium this morning. There is a surprisingly amount of sources for this from the tenth/eleventh centuries, and I didn't even go into the material evidence! Found a few references that would be useful for my research on the seventh century too, not too bad for a Sunday...
The other medievalists have also outdone themselves this week. /u/valkine wrote a great summary of the primary sources for the Crusades, /u/alriclofgar tackled the symbolic meanings of Viking helmets, and /u/textandtrowel wrote about Scandinavian demography during the Viking Age. Go Team Medieval!
I dropped an answer on the 116th Pennsylvania Infantry Regiment and their role in the battle of Fredericksburg for a user whose ancestor died in that battle.