Groups of Seven - xkcd

This xkcd comic referenced 14 groups of seven. Flush them out.
Quiz by plattitude
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Last updated: September 10, 2014
First submittedSeptember 10, 2014
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Dwarfs
Sneezy
Sleepy
Happy
Grumpy
Dopey
Doc
Bashful
 
Taxonomy Ranks
Kingdom
Phylum
Class
Order
Family
Genus
Species
 
Continents
North America
South America
Europe
Asia
Africa
Australia
Antarctica
 
Mortal Sins
Pride
Envy
Lust
Sloth
Avarice
Wrath
Gluttony
7 Layer Dip
Ground Beef
Refried Beans
Cheese
Sour Cream
Guacamole
Salsa
Olives
 
OSI Model Layers
Application
Presentation
Session
Transport
Network
Data Link
Physical
 
Wonders of the World
Great Pyramid of Giza
Hanging Gardens of Babylon
Temple of Artemis at Ephesus
Statue of Zeus at Olympia
Mausoleum at Halicarnassus
Lighthouse of Alexandria
Colossus of Rhodes
 
Days of the Week
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Modern Seas
Pacific Ocean
Arctic Ocean
Atlantic Ocean
Indian Ocean
Gulf of Mexico
Mediterranean Sea
Caribbean Sea
 
7 Sisters (Colleges)
Mount Holyoke College
Vassar College
Wellesley College
Smith College
Radcliffe College
Bryn Mawr College
Barnard College
 
Colors of the Rainbow
Red
Orange
Yellow
Green
Blue
Indigo
Violet
 
Sophocles Plays*
Antigone
Ajax
Oedipus the King
Philoctetes
Electra
The Trachinian Maidens
Oedipus At Colonos
7 Sisters (Pleiades)*
Maia
Electra
Taygete
Alcyone
Celaeno
Sterope
Merope
 
Covey's 7 Habits
Be Proactive
Begin with the End in Mind
Put First Things First
Think Win-Win
Seek First to Understand
Synergize
Sharpen the Saw
 
Seals of Revelation
First Seal
Second Seal
Third Seal
Fourth Seal
Fifth Seal
Sixth Seal
Seventh Seal
 
 
 
 
 
 
 
 
 
+2
Level 90
Sep 10, 2014
xkcd used 'Electra' as one of the list items, which could ether be one of the seven sisters of the Pleiades or one of Sophocles' seven plays. I included both lists for your enjoyment.
+2
Level 77
Oct 13, 2014
I've seen several groups listed under "modern seas" or "seven seas". One includes the north and south Atlantic, north and south Pacific, and others. Another includes the Aegean, North, Arabian, Irish, etc.
+2
Level 90
Oct 14, 2014
Yes, I think we humans are both fascinated with the number 7 and sentimental enough to want to 'recreate' lists that existed in antiquity, and so we try to force the world into that list of 7, even though the reality isn't so straightforward. Same thing happens with the 7 wonders of the modern world. Much disagreement on what should be included.