Act Declaring the Rights and Liberties
of the Subject and Settling the Succession
of the Crown, An (British history):
see in index Rights, Bill of
acting (theatrical arts)
theater volume 13 page 57
actinide element (family of chemical
elements)
periodic table table, volume 3 page 86
Actium, Battle of (ancient Roman history,
31 BC)
Cleopatra volume 3 page 135
Act of Union (Great Britain and Ireland,
1801): see in index Union, Act of
Acts of the Apostles, The (New Testament)
Bible volume 2 page 68
acupuncture (Chinese medical technique)
MAIN ARTICLE volume 1 page 20, picture,
volume 1 page 20
acute angle (mathematics)
geometry volume 5 page 98
AD (division of time for dating events):
see in index anno Domini
Adams, Abigail (first lady of the U.S.)
MAIN ARTICLE volume 1 page 20, picture,
volume 1 page 21
MORE TO EXPLORE
Adams, John Quincy volume 1 page 24
Adams, Ansel (U.S. photographer)
MAIN ARTICLE volume 1 page 21, picture,
volume 1 page 22
Adams, John (president of the U.S.)
MAIN ARTICLE volume 1 page 22, picture,
volume 1 page 22
MORE TO EXPLORE
Adams, Abigail volume 1 page 20
Adams, John Quincy volume 1 page 24
timeline volume 1 page 22
White House volume 15 page 42
Adams, John Quincy (president of the
U.S.)
MAIN ARTICLE volume 1 page 24, picture,
volume 1 page 24
MORE TO EXPLORE
Abigail Adams volume 1 page 21
timeline volume 1 page 24
Adams, Louisa (first lady of the U.S.)
Adams, John Quincy volume 1 page 24
Adams, Samuel (U.S. politician)
MAIN ARTICLE volume 1 page 26, picture,
volume 1 page 26
MORE TO EXPLORE
Revere volume 11 page 58
adaptation (biology and physiology)
MAIN ARTICLE volume 1 page 26, picture,
volume 1 page 27
MORE TO EXPLORE
cave volume 3 page 64
evolution volume 4 page 171
fish volume 5 page 27
habitat volume 6 page 4
ADD (medical disorder): see in index
attention-deficit/hyperactivity disorder
Addams, Jane (U.S. social reformer)
MAIN ARTICLE volume 1 page 27, picture,
volume 1 page 27
addax (mammal)
antelope volume 1 page 138
adder (reptile)
scales picture, volume 11 page 51
Addis Ababa (capital city of Ethiopia)
MAIN ARTICLE volume 1 page 28, picture,
volume 1 page 28
MORE TO EXPLORE
African Union volume 1 page 46
Ethiopia volume 4 page 155
Ade, King Sunny (Nigerian musician)
world music volume 15 page 60
Adelaide (state capital of South Australia,
Australia)
South Australia volume 12 page 145
Adena culture (prehistoric North American
culture)
MAIN ARTICLE volume 1 page 29
MORE TO EXPLORE
Adena burial mound picture, volume 1
page 29
mound builders volume 8 page 194
Serpent Mound picture, volume 8
page 194
adenine (chemical compound)
DNA volume 4 page 61
ADHD (medical disorder): see in index
attention-deficit/hyperactivity disorder
“Adi Granth” (Sikh sacred scripture)
Sikhism volume 12 page 88, picture,
volume 12 page 88
Adirondack Mountains (mountain range
in New York, U.S.) picture, volume 9
page 57, picture, volume 9 page 79
!Adnan (Arab legendary figure)
Arabs volume 1 page 159
BRITANNICA STUDENT ENCYCLOPEDIA !Adnan 5
adobe (building material)
MAIN ARTICLE volume 1 page 29, picture,
volume 1 page 30, picture, volume 10
page 164
MORE TO EXPLORE
brick and tile volume 2 page 129
adolescence (stage of human development)
MAIN ARTICLE volume 1 page 30
MORE TO EXPLORE
acne volume 1 page 18
adrenal gland (anatomy)
endocrine system volume 4 page 136,
picture, volume 4 page 135
Adriatic Sea (Mediterranean Sea)
MAIN ARTICLE volume 1 page 31
MORE TO EXPLORE
coastline in Dalmatia region picture,
volume 3 page 218
harbor of Dubrovnik, Croatia picture,
volume 6 page 17
Mediterranean Sea volume 8 page 94
Montenegro picture, volume 8 page 175
adult education
education volume 4 page 106
adulthood
sleep volume 12 page 108
adult insect
flea volume 5 page 33
insects volume 6 page 140
adult learning: see in index adult education
“Advance Australia Fair” (Australian
national anthem)
national anthem volume 9 page 13
Advanced Research Projects Agency
Network (U.S. computer network)
Internet volume 6 page 142
“Adventures of Huckleberry Finn, The”
(novel by Twain)
Twain volume 13 page 122
“Adventures of Tom Sawyer, The”
(novel by Twain)
Twain volume 13 page 122
advertising (promotion)
MAIN ARTICLE volume 1 page 32, picture,
volume 1 page 32
MORE TO EXPLORE
magazine volume 8 page 15
Aegean civilization (ancient Greece)
MAIN ARTICLE volume 1 page 33, picture,
volume 1 page 33
MORE TO EXPLORE
ancient Greece volume 5 page 154
Aegean Sea (Mediterranean Sea)
MAIN ARTICLE volume 1 page 34, picture,
volume 1 page 34
MORE TO EXPLORE
Mediterranean Sea volume 8 page 94
Aeneas (Roman mythology)
Aphrodite volume 1 page 149
aepyornis (extinct bird): see in index
elephant bird
aerial (skiing)
skiing volume 12 page 99
aerial root (root system)
root volume 11 page 96
aerobic exercise
exercise volume 4 page 172
aerodynamics (physics)
airplane volume 1 page 56
aerospace industry
Oklahoma City volume 9 page 131
Aesop (legendary Greek fable teller)
MAIN ARTICLE volume 1 page 35, picture,
volume 1 page 35
MORE TO EXPLORE
fable volume 5 page 4
Afar (people)
Djibouti volume 4 page 59
affirmative action (U.S. government and
social policy)
civil rights movement volume 3
page 131
Afghan hound (breed of dog)