gistfile1.php

//Simple WPQuery filter by category Slug
<?php
	wp_reset_postdata();
		$args = array( 
  			'category_name' => 'actualidad',
  			'orderby' => 'date',
  			'post_type' => 'post',
  			'posts_per_page' => -1  
		);

	$the_query = new WP_Query( $args );
						
	while ( $the_query->have_posts() ) : $the_query->the_post();?>
		<div class="item">
		 <!-- do stuff -->
		</div>
	<?php endwhile; ?>