In timeline view, select author John Mark
BUG: results in no results rather than returning the Gospel of Mark.
bumping for attention 7
I'm looking into this.
I agree this is confusing, but the diagnosis is different. Looks like you don't get a timeline display if filtered down to only a single book: compare selecting Luke (two books, timeline data) with Luke + Acts (one book, no timeline data). That could be considered a design decision: with only one book, there's nothing to compare to. But maybe it would be better to just show the one datapoint: i'll pass this feedback along.
It's a bug, either mine or in the third-party graphing library. I'll file it and fix it asap.
thanks, eli