This snippet lets you add numbers beside your posts. You could use Article 1, Article 2, Article 3; or Post 1, Post 2, Post 3; or whatever you want.

Add this to your functions:

 
function updateNumbers() { 
 
global $wpdb; 
$querystr = "SELECT $wpdb->posts.* FROM $wpdb->posts WHERE $wpdb->posts.post_status = 'publish' AND $wpdb->posts.post_type = 'post' "; 
$pageposts = $wpdb->get_results($querystr, OBJECT); 
$counts = 0 ; 
 
if ($pageposts): 
 
foreach ($pageposts as $post): 
setup_postdata($post); 
$counts++; 
add_post_meta($post->ID, 'incr_number', $counts, true); 
update_post_meta($post->ID, 'incr_number', $counts); 
 
endforeach; 
 
endif; 
} 
add_action ( 'publish_post', 'updateNumbers' ); 
add_action ( 'deleted_post', 'updateNumbers' ); 
add_action ( 'edit_post', 'updateNumbers' ); 

Then add this within the loop:

 
<?php echo get_post_meta($post->ID,'incr_number',true); ?>