Arts & Humanities
1840s
11%
1870s
11%
18th Century
13%
Academy of Fine Arts
15%
African Journey
19%
Angola
14%
Archaeological Sites
11%
Archeological Artifact
14%
Art Collection
13%
Aura
12%
Canals
17%
Coal Mining
16%
Concession
10%
Courtesy
13%
Dealers
12%
Documentation
13%
Drainage
22%
Economics
10%
Elaboration
11%
Engineers
28%
Expedition
10%
Exploitation
12%
Factory
13%
Finale
13%
Fugue
14%
Geology
39%
Heraldry
15%
Heritage
12%
Historical Archives
13%
History
17%
Hydraulics
16%
Inauguration
12%
Iron
19%
Irrigation
12%
Journey
14%
Knife
12%
Lisbon
72%
Manganese
14%
Museum Exhibitions
14%
Newcastle
14%
Pea
15%
Pioneers
11%
Plaster
12%
Portugal
100%
Prelude
12%
Railway
19%
Route
12%
Scarcity
11%
Water Supply
13%
Earth & Environmental Sciences
ammonite
16%
archaeological site
11%
archaeology
11%
blast furnace
11%
celestine
15%
cephalopod
13%
coal
39%
coal mine
43%
coal mining
9%
concession
13%
cooperation
9%
Cretaceous
19%
demand
9%
diamond
10%
education
13%
eighteenth century
14%
fieldwork
21%
flint
13%
fossil
10%
geology
33%
historical perspective
19%
history
26%
industrial development
15%
iron
10%
Jurassic
31%
library
14%
lignite
16%
mineral
9%
municipality
9%
museum
50%
natural science
12%
occupation
10%
organization
11%
outcrop
16%
paleontology
32%
project
11%
public
14%
public health
9%
responsibility
10%
science
13%
science and technology
11%
sedimentary rock
9%
stone
9%
stratigraphy
18%
student
8%
teaching
16%
Tethys
11%
urban population
12%
water resources management
10%
water supply
16%