[#BloombergLP-bbldc-BasicDateRangeDayCountAdapter-firstDate] = xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bbldc.adoc[bbldc]::xref:BloombergLP/bbldc/BasicDateRangeDayCountAdapter.adoc[BasicDateRangeDayCountAdapter]::firstDate :relfileprefix: ../../../ :mrdocs: Return a reference providing non‐modifiable access to a `bdlt::Date` with the value 1/1/1. Note that this value is the earliest date in the valid range of the adapted day‐count convention. == Synopsis Declared in `<bbldc_basicdaterangedaycountadapter.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- virtual xref:BloombergLP/bdlt/Date.adoc[bdlt::Date] const& firstDate() const override; ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#