[...]
	<div class="items">
	<?php foreach ($stamp->items as $item){ ?>

	<a href="<?php echo $item->url; ?>" alt="<?php echo $item->title; ?>">
		<div class="event">

...
...Your code for one event...
...
		</div>
	</a>
	<?php } ?>

[...]

<?php // List of events Template ?>
<div>
	<div class="items">
	<?php foreach ($stamp->items as $item){ ?>
	<div>
	<a href="<?php echo $item->url; ?>" alt="<?php echo $item->title; ?>">
		<div class="event">
			<?php if ($item->next): ?>
			<span href="<?php echo $item->url; ?>" alt="<?php echo $item->title; ?>">
			<?php if (!$item->image): ?>

			<div class="box_date">

				<span class="day"><?php echo $item->day; ?></span><br/><?php echo $item->monthShort; ?>
				<span class="noimage"><?php echo JTEXT::_('COM_ICAGENDA_EVENTS_NOIMAGE'); ?></span>
			</div>

			<?php endif; ?>
			<?php if ($item->image): ?>

			<div class="box_date" style="background:(<?php echo $item->image; ?>) no-repeat center center; background-size: cover; border: 1px solid <?php echo $item->cat_color; ?>">

				<span class="day"><?php echo $item->day; ?></span><br/><?php echo $item->monthShort; ?>
			</div>

			<?php endif; ?>
			</span>
			<?php endif; ?>

			<div class="content">
				<div class="eventtitle">
					<table class="table">
						<tbody>
							<tr>
								<td class="tit" valign="middle">
									<div>
										<h1><a href="<?php echo $item->url; ?>" alt="<?php echo $item->title; ?>"><?php echo $item->title; ?></a></h1>
									</div>
								</td>
								<td class="cat" valign="middle">
									<div style="color:<?php echo $item->cat_color; ?>;">
										<?php echo $item->cat_title; ?>
									</div>
								</td>
							</tr>
						</tbody>
					</table>
				</div>
				<div style="clear:both"></div>

				<?php if ($item->desc): ?>
				<div class="descshort"><?php echo $item->descShort ; ?></div>
				<?php endif; ?>

			 	<div class="moreinfos">
			 		<?php echo JTEXT::_('COM_ICAGENDA_EVENTS_MORE_INFO'); ?>
			 	</div>

			</div>
			<div style="clear:both"></div>

		</div>
		</a>
		</div>
		<?php } ?>


		<?php if ($this->atlist): ?>
			<div class="share"><?php echo $item->share; ?></div>
		<?php endif; ?>

	</div>
</div>
<div style="clear:both"></div>

$text=strip_tags($text).'<a href="'.$url.'" class="more">'.$readmore.'</a>';

$text=strip_tags($text).' '.$readmore.' ';