[#BloombergLP-bdlt-Calendar-firstDate]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlt.adoc[bdlt]::xref:BloombergLP/bdlt/Calendar.adoc[Calendar]::firstDate
:relfileprefix: ../../../
:mrdocs:

Return a reference providing non&hyphen;modifiable access to the earliest date in the valid range of this calendar&period; The behavior is undefined unless this calendar is non&hyphen;empty &hyphen;&hyphen; i&period;e&period;, unless `1 &lt;&equals; length()`&period;

== Synopsis

Declared in `&lt;bdlt&lowbar;calendar&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bdlt/Date.adoc[Date] const&
firstDate() const;
----


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