from — The beginning point in a period of time
The from element specifies the instant at which a given period of time begins. It is always followed by a to element in a period.
from may be contained in these elements: period
to.
<period>
<from>
<date>
<dayOfMonth>26</dayOfMonth>
<month>December</month>
<year>1936</year>
</date>
</from>
<to>
<date>
<dayOfMonth>14</dayOfMonth>
<month>January</month>
<year>2015</year>
</date>
</to>
</period>