Today i got a question in Joomla forum . The person was asking about , how to change the joomla poll parameters like

First Vote : Monday, 09 October 2006 13:01 Last Vote : Tuesday, 03 July 2007 12:37

so here is the simple solution go to your joomla root folder and then components\com_poll\views\poll\tmpl\default_graph.php at line 47

<tr>

<td class="smalldark">
<?php echo JText::_( 'First Vote' ); ?>
</td>
<td class="smalldark">
&nbsp;:&nbsp;
<?php echo $this->escape($this->first_vote); ?>
</td>
</tr>
<tr>
<td class="smalldark">
<?php echo JText::_( 'Last Vote' ); ?>
</td>
<td class="smalldark">
&nbsp;:&nbsp;
<?php echo $this->escape($this->last_vote); ?>
</td>
</tr>

now comment or delete which one you want .enjoy ;)