custom post type not showing in wordpress calendar

i added a custom post type in wordpress. but its post is not showing in calendar.

have a look at code:

register_post_type(
‘events’,
array(
‘label’ => __(‘Event’),
‘singular_label’ => __(‘location’),
‘public’ => true,
‘show_ui’ => true,
‘capability_type’ => ‘post’,
‘hierarchical’ => false,
‘rewrite’ => true,
‘query_var’ => true,
‘show_in_nav_menus’ => true,
‘menu_position’ => 5,
‘taxonomies’ => array(‘event’),
‘supports’ => array(‘title’, ‘editor’, ‘author’, ‘thumbnail’, ‘excerpt’ , ‘trackbacks’ , ‘comments’ , ‘custom-fields’),
‘_builtin’ => false, // It’s a custom post type, not built in!
));

dont you think it should display in calendar with other post