This "On This Day" plugin allows you to enter historic or future events and display them via the included widget and shortcodes.

<p>This plugin allows you to enter and manage different kinds of events that you then display in via a widget or shortcodes.</p>
<h3>Shortcodes</h3>
<p>There are two shortcodes.  <code>[tdih]</code> shows output as a list similar to the widget and <code>[tdih_tab]</code> shows output as a table.</p>
<h4>tdih</h4>
<p>You can add a <code>[tdih]</code> shortcode to any post or page to display a list of events as per the widget.</p>
<p>There are eleven optional attributes for this shortcode</p>
<ul>
<li>show_age (0, 1) – 1 shows the age in years of the event in brackets after the title and 0 does not (default).</li>
<li>show_link (0-2) – 0 shows a more link if there is more to show (default), 1 links the title if there is more to show and 2 always links the title.</li>
<li>show_type (0, 1) – 1 shows event types (default) and 0 does not.</li>
<li>
<p>show_year (0, 1) – 1 shows the year of the event (default) and 0 does not.</p>
</li>
<li>
<p>type – enter a type to show only events of that type. Shows all types by default.</p>
</li>
<li>day (1-31) – enter a day to show only events on that day. Shows all days by default.</li>
<li>month (1-12, c) – enter a month to show only events in that month. Shows all months by default.</li>
<li>year (-9999 to 9999, 0) – enter a year to show only events in that year. Shows all years by default.</li>
<li>period (t, m, y) – show events for today, tomorrow and yesterday. Shows today’s events by default.</li>
<li>classes – enter one or more space separated classes which will be added to the table tag.</li>
<li>max_rows (1-99) – enter a maximum number of events to show. Shows all events by default.</li>
</ul>
<p>Example use:</p>
<ul>
<li><code>[tdih]</code> – This shows year and event types for all event types for today’s events.</li>
<li><code>[tdih show_type=0 type='birth']</code> – This shows year and event but not type for the event type (slug) of birth.</li>
<li><code>[tdih year=1066 max_rows=5]</code> – This shows year and event types for up to five events that happened on this day in 1066.</li>
</ul>
<h4>tdih_tab</h4>
<p>You can add a <code>[tdih_tab]</code> shortcode to any post or page to display a table of events.</p>
<p>There are fourteen optional attributes for this shortcode:</p>
<ul>
<li>show_date (0, 1) – 1 shows the date (default) and 0 does not.</li>
<li>show_dow (0, 1) – 1 shows the day of the week and 0 does not (default).</li>
<li>show_head (0, 1) – 1 shows a header row (default) and 0 does not.</li>
<li>show_link (0, 1, 2) – 0 shows a more link if there is more to show, 1 links the title if there is more to show and 2 always links the title.</li>
<li>
<p>show_type (0, 1) – 1 shows event types (default) and 0 does not.</p>
</li>
<li>
<p>order_dmy (0, 1) – 0 sorts chronologically by year-month-day (default) and 1 sorts by day-month-year.</p>
</li>
<li>type – enter a type to show only events of that type. Shows all types by default.</li>
<li>day (1-31) – enter a day to show only events on that day. Shows all days by default.</li>
<li>month (1-12, c) – enter a month to show only events in that month. Shows all months by default.</li>
<li>year (-9999 to 9999, 0) – enter a year to show only events in that year. Shows all years by default.</li>
<li>period (a, c, l, m, n, t, w, y) – t, m, y show events for today, tomorrow and yesterday. c, l, n, w show events for current, last, next and ISO week. a show all events. Shows today’s events by default.</li>
<li>period_days (1-99) – enter the number of days to show for t, m, y periods only. Shows only one day by default.</li>
<li>date_format – enter a custom <a href="https://www.php.net/manual/en/function.date.php" rel="nofollow ugc">php date format</a> to display the date. Uses the tdih admin setting by default.</li>
<li>classes – enter one or more space separated classes which will be added to the table tag.</li>
</ul>
<p>NB:</p>
<ul>
<li>day of the week will never be shown if the date is not shown.</li>
<li>Setting date_format will override the tdih admin format and the day of the week setting.</li>
<li>Setting period will override any values for day, month and year.</li>
<li>day, month and year can be combined.</li>
<li>year=0 will display events with no year</li>
<li>month=c will display the current month</li>
<li>period=c, l or n show a seven day period with the current day as the middle, last or first day.</li>
</ul>
<p>Example use:</p>
<ul>
<li><code>[tdih_tab period='a']</code> – This shows a full list of events in date order and includes the event type.</li>
<li><code>[tdih_tab show_types=0 type='birth' classes='content dark']</code> – This shows events but not type for the event type (slug) of birth. ” content dark” will be added to the table’s class.</li>
<li><code>[tdih_tab day=20 month=8 date_format='Y']</code> –  This shows events on 20th August in any year. Format the date to only show the four digit year.</li>
</ul>


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