Hi,
If I have understood your requirement right, you want to create a page which will list your posts by say month.
By default, page.php in a theme takes care of displaying archives, tags, category etc., i.e. if you click on a category link displayed inside a post, it will open up a new page and list all posts under selected category.
You can active Archives by using sidebar widget as well in general. However, if you want a separate page specific for displaying archives based on your custom criteria you need a file (page template) called page-archive.php inside your theme folder. In this file you need to write code to get your desired result.
A typical archive page (page-archive.php template) can look like this:
<?php
/*
Template Name: Archives
*/
get_header(); ?>
<div id="primary" class="site-content">
<div id="content" role="main">
<?php while ( have_posts() ) : the_post(); ?>
<h1 class="entry-title"><?php the_title(); ?></h1>
<div class="entry-content">
<?php the_content(); ?>
/* Custom Archives Functions Go Below this line */
/* Custom Archives Functions Go Above this line */
</div><!-- .entry-content -->
<?php endwhile; // end of the loop. ?>
</div><!-- #content -->
</div><!-- #primary -->
<?php get_sidebar(); ?>
<?php get_footer(); ?>
To get more insight about WordPress template hierarchy you should read this:
https://developer.www.ads-software.com/themes/basics/template-hierarchy/
