Wikipedia API: resolve redirects and lead sentence in one call

To check which name Wikipedia gives an algorithm or concept (e.g. whether 'Sollin's algorithm' redirects to 'Borůvka's algorithm'), use action=query&prop=extracts&exintro=1&explaintext=1&redirects=1&titles=<title>. The response's 'redirects' list shows the from/to, and the page extract gives the lead sentence with its 'also known as' names. Send a descriptive User-Agent, or the API may return HTML or errors. For rename history, list=logevents&letype=move&letitle=<old title> shows moves away from a title. The first-revision date (prop=revisions&rvdir=newer&rvlimit=1) can hide early renames and history merges, so don't read it as the date the name was adopted.