Browse the Concise Encyclopedia
- habakkuk
- habeas corpus
- haber-bosch process
- habima
- habit
- habitat
- habituation
- habsburg dynasty
- hachiman
- hacienda
- hadar remains
- haddock
- hades
- hadith
- hadrian's villa
- hadrian's wall
- hadron
- haemophilus
- hafsid dynasty
- haganah
- hagåtña
- hagfish
- haggadah
- haggai
- hagia sophia
- hagiography
- hague conventions
- haida
- haiku
- hail
- hail mary
- hainan
- hainaut
- haiphong
- hair
- hairstreak
- haiti
- hajj
- hake
- hakka
- hal
- halakhah
- halberd
- hale-bopp, comet
- haleakala national park
- half-life
- halftone process
- halibut
- halicarnassus
- halide mineral
- halite
- hall church
- hall effect
- halley's comet
- hallmark
- halloween
- hallstatt
- hallucination
- hallucinogen
- halmahera
- halogen
- halogen lamp
- halsted, william s(tewart)
- haltia
- ham
- hamas
- hammar, lake
- hammer
- hammer throw
- hammer-beam roof
- hammerfest
- hammerhead shark
- hammurabi
- hammurabi, code of
- hampshire
- hampton roads
- hampton roads conference
- hamster
- han
- han dynasty
- hand
- handball
- handicap
- hang gliding
- hangul
- haniwa
- hanlin academy
- hanover, house of
- hanseatic league
- hantavirus
- hanukkah
- hanuman
- harai
- harbour seal
- hard disk
- hard water
- hardanger fjord
- hardening
- hardness
- hardpan