Region
20th century
1
Africa
1
America
2
Australia
1
Canada
1
England
12
English-speaking countries
8
Europe
8
France
8
Germany
6
Great Britain
44
Greece
1
India
3
Ireland
5
Islamic countries
1
London (England)
1
Minority authors
1
Moon
1
Nigeria
3
Rome
4
Russia
1
Scotland
1
Southern States
6
United States
50