As it is now the date is only shown as a ? if you i.e have typed "Before 18 feb 1818" . n many other places it is show as <18 feb1818 or in short <1818. If shown as suggested the comparence of Smart Matches would be easier in tree view and the need for clicking the persons to view info at left side would not be neccessary. On late Saturday I received 7000 new Smart Matches and it has taken me 4 day and I still not finished with reviewing them. It would save a lot of time if the date in any form was present.
<1818 = Before 1818
> = After
~ = About
Dont know how to handle "Between" if only one year is used. Maybe "><1818" where 1818 is the first date. I think it is the first date only that is showing today in this case.