"Will the Real Fourth of July Please Stand Up?" will walk you through the basic how-to of the Periodic Calendar and begin to explain how P-Cal is not just a perpetual calendar, but a new way to look at time.
...so we look in that row for the number 4...
...and ﬁnd seven of them?
Don’t worry, it’s nothing tricky.
Just like your birthday, the 4th
of July can fall on any day of the
week, depending on the year.
The question then becomes,
what Type of Year is it?
Check on 2014,
I need to start
planning my BBQ!
To ﬁnd a year, all you have to do is
look it up on the color-coded set of years
at the bottom of the Periodic Calendar.
What kind of
calendar is this?
It’s perpetual! This
is the last calendar
you’ll ever need.
Pick your century,
then ﬁnd your year.
2014 is purple.
That must mean
Yes, the color tells
us what type of
year 2014 will be.
2014 is a Wednesday Year because it begins on a Wednesday.
(January 1st = Wednesday)
Therefore July 4th, 2014 will fall on the purple “4”...
... known as the Wednesday isotope of Element 224.
Alright! Element 224 is a
Friday, which means the 4th of
July will be kicking off
a three-day weekend in 2014!!!
And in Wednesday Years, the Wednesday Isotopes
tell you what day of the month it is all year long.
So for all of 2014,
we follow the
numbers in purple.
But if there are seven possible July 4ths,
which one happened in 1776?
into the past?! You
just blew my mind!
Yes, the Periodic Calendar
can handle all of your past,
present, and future needs!
Once again, just pick the century
and ﬁnd your year.
Oh boy, 1776 is two
colors, that deﬁnitely
Yes, it means
1776 and 1780
were leap years!
In Leap Years, we start in one type of year and
to the next...
1776 started as a Monday Year,
but leapt to a Tuesday Year after Leap Day.
That means Element 66
existed as February 29th
...followed by Element
74 as March 1st.
So, the U.S. originally declared its independence on a
Thursday, but in 2014 we will celebrate it on a Friday.
The question then becomes, what’s more meaningful:
the day of the week or the day of the month?
Should we celebrate the 4th
of July on whatever day of the
week it falls on, or should it
be attached to Thursday (aka
Element 223) even though it
would fall on different days of
What difference does the day of the week make?
Try ranking the seven days by which
one you’d rather today was!
The same questions apply to your birthday
and your Birth Element, but that’s a
story for another slideshow.
This is just the beginning of the
discoveries to be made with the
To learn more, visit www.PeriodicCalendar.com
What do you think?
Are you a P-Cal Pioneer?
See what Mensa and Maker Faire
thought of P-Cal on the blog!