Interposing event dates on time series line plot


I’m new to plotly, and so far getting much nicer outputs from it than matplotlib in my jupyter notebook!!
A small question I have: plotting time series data, is it somehow possible to interpose visual indication for the times where certain events happened? i.e. either as vertical bars with text, or as event bubbles, pins, or even icons like the google maps places icon?

I am currently using the Scatter plot, using my own interval aggregation on the data before feeding it into plotly. I can of course, switch to another adequate chart type. Or, if it’s possible to overlay two types to get the desired result.

Thanks for letting me know whether there are viable options!