Conversation so far:
How did Boris die?
23 April 2007.
what caused his death?
congestive heart failure.
where was his funeral?
had lain in repose in the Cathedral of Christ the Saviour in Moscow.
how many people attended?
CANNOTANSWER.
what else happened during his funeral?
his body had lain in repose.
what else is noteable about his death?
President Putin declared the day of his funeral a national day of mourning, with the nation's flags flown at half mast and all entertainment programs suspended for the day.

Question: what else did Putin do?
Self-contained rewrite: what else did Putin do besides declaring a national day of mourning for Boris Yeltsin funeral?