Above, a 1934 plaque from the Big Apple Night Club at West 135th Street and Seventh Avenue in Harlem. Discarded as trash in 2006. Now a Popeyes fast food restaurant on Google Maps.

Entry from November 02, 2022

“Avogadro’s toast” was posted on Twitter by Andrew Kim on September 13, 2016. “randomspren: aplpaca: avocado toast? no. Avogadro toast. its the exact same thing except theres 6.022 x 10… https://tmblr.co/ZkOgBt2N5xVX5” was posted on Twitter by Joan R on June 25, 2017.

“Avocado Toast + Mole Sauce = Avogadro Toast” was posted on Twitter by It’s Still Me, MBK on October 7, 2018.

“I ordered some Avocado Toast at a cafe, but imagine my surprise when I was given 602214076000000000000000 pieces of toasts. It was then I realized… I’d accidentally ordered Avogadro’s Toast” was posted on Reddit—Jokes on October 27, 2020. The same joke was posted on Reddit—Dadjokes on October 11, 2022.

“How many guacs are in a bowl of guacamole?”/“Avocado’s number” and “What do you call 6.02 * 10^23 butts?”/“Molasses” are related jokes.

Lorenzo Romano Amedeo Carlo Avogadro di Quaregna e di Cerreto, Count of Quaregna and Cerreto (9 August 1776, Turin, Piedmont-Sardinia – 9 July 1856), was an Italian scientist, most noted for his contribution to molecular theory now known as Avogadro’s law, which says equal volumes of gases under the same conditions of temperature and pressure will contain equal numbers of molecules. In tribute to him, the number of elementary entities (atoms, molecules, ions or other particles) in 1 mole of a substance, 6.02214179(30)×1023, is known as the Avogadro constant, one of the seven SI base units and represented by NA.

In chemistry and physics, the Avogadro constant is the number of constituent particles, usually atoms or molecules, that are contained in the amount of substance given by one mole. Thus, it is the proportionality factor that relates the molar mass of a compound to the mass of a sample. Avogadro’s constant, often designated with the symbol NA or L, has the value 6.022140857(74)×1023 mol−1 in the International System of Units (SI).

Previous definitions of chemical quantity involved Avogadro’s number, a historical term closely related to the Avogadro constant, but defined differently: Avogadro’s number was initially defined by Jean Baptiste Perrin as the number of atoms in one gram-molecule of atomic hydrogen, meaning one gram of hydrogen. This number is also known as Loschmidt constant in German literature. The constant was later redefined as the number of atoms in 12 grams of the isotope carbon-12 (12C), and still later generalized to relate amounts of a substance to their molecular weight.

Andrew Kim
@ThatAndrewKim
11:42 AM · Sep 13, 2016·Twitter for iPhone

Joan R
@Jo_Redelinguist
randomspren: aplpaca: avocado toast? no. Avogadro toast. its the exact same thing except theres 6.022 x 10… https://tmblr.co/ZkOgBt2N5xVX5
7:37 AM · Jun 25, 2017·Tumblr

zach kagan
@zakagan
Server: another millennial ordering avocado toast
S:
M: 6.022x10^23 slices of toast
S:
M: it’s to build a house
11:35 AM · Jul 24, 2017·Twitter for iPhone

Bill
@mainetaxguru
What do hipster chemists have for breakfast? Avogadro toast.
Quote Tweet
Kelly Phillips Erb
@taxgirl
·
Oct 23, 2017
Happy National #MoleDay! Fun fact: Avogadro started out as a #lawyer.
7:34 AM · Oct 23, 2017·Twitter Web Client

Sommer Panage
@Sommer
What do you do with 6.022 x 10^23 slices of bread?
Quote Tweet
Joe Groff
@jckarter
·
Nov 12, 2017
When a Spanish lawyer gives a speech at a dinner reception, is it an abogado toast
5:05 PM · Nov 12, 2017·Twitter for iPhone

Bradlee knows where his towel is
@b_crawford_c
I bought 6.02x10*23 slices of bread. I want to make Avogadro’s toast.
6:51 PM · Feb 22, 2018·Twitter for Android

A joke.
What do millennials who like chemistry have for breakfast?
11:53 AM · Sep 28, 2018·Twitter for iPhone

It’s Still Me, MBK
@mbklein
1:09 PM · Oct 7, 2018 from Chicago, IL·Twitter for iPhone

Reddit—Jokes
Posted by u/jwhart175 November 14, 2018
What has 6.022 x 10^23 molecules and makes a great breakfast?

Posted by u/[deleted] March 10, 2019
What do hipster Chemistry students each for breakfast?
vinayjrao
Eat*

Crystal Neill
@crystalclear823
What do chemists eat for breakfast?
2:42 PM · Aug 31, 2019·Twitter for Android

Martin McGarrigle
@mmcgarrigle
8:09 AM · May 7, 2020·Twitter Web App

Coles Street Pothole
@ColesStreetPoth
10:04 AM · Jun 29, 2020·Twitter for iPhone

Moth
@smalllittlemoth
There should be a nerd restaurant where they serve a dish called Avogadro’s toast where it’s avocado toast but all the bread is in the shape of the number used for mole / atom conversions
11:36 AM · Jul 8, 2020·Twitter for Android

Ben Gross
@bhgross144
Q: What do millennial chemists eat for breakfast on #MoleDay?
Quote Tweet
Ben Gross
@bhgross144
·
Feb 27, 2020
Spotted today at my local @TJoesOfficial: The inevitable culmination of *decades* of bad #chemistry puns.
(It’s the perfect snack for Guaca-#MoleDay!)

Reddit—Jokes
Posted by u/arbitrarycivilian October 27, 2020
I ordered some Avocado Toast at a cafe, but imagine my surprise when I was given 602214076000000000000000 pieces of toasts. It was then I realized…
Degofreak
With extra Mole sauce.

Posted by u/positive_electron42 May 24, 2021
What do millennial chemists eat?

the one who knocks
@intense_limes
9:42 PM · Sep 10, 2021·Twitter for Android

Michael Graham
@ABWGraham
What do Millennial chemists eat for breakfast?
8:41 AM · Oct 6, 2021·Twitter for Android

RC deWinter
@RCdeWinter
I ordered some Avocado Toast at a cafe was given 602214076000000000000000 pieces of toast. It was then I realized
2:11 AM · Aug 4, 2022·Twitter for iPhone