Category:20th century in Wales

• Years of the 20th century in Wales‎ (100 C, 100 P)

/

• 20th-century disestablishments in Wales‎ (11 C)
• 20th-century establishments in Wales‎ (10 C, 2 P)

0–9

• 1900s in Wales‎ (14 C, 11 P)
• 1910s in Wales‎ (15 C, 11 P)
• 1920s in Wales‎ (16 C, 11 P)
• 1930s in Wales‎ (16 C, 12 P)
• 1940s in Wales‎ (16 C, 12 P)
• 1950s in Wales‎ (16 C, 11 P)
• 1960s in Wales‎ (16 C, 10 P)
• 1970s in Wales‎ (16 C, 11 P)
• 1980s in Wales‎ (16 C, 11 P)
• 1990s in Wales‎ (17 C, 13 P)

B

• 20th-century Roman Catholic bishops in Wales‎ (12 P)

C

• 20th century in Cardiff‎ (9 C, 4 P)
• 20th century in Carmarthenshire‎ (35 P)
• 20th century in Ceredigion‎ (25 P)
• 20th-century Church in Wales church buildings‎ (8 P)

D

• Dyfed County Council elections‎ (6 P)

E

• 20th-century elections in Wales‎ (10 C)

G

• 20th century in Glamorgan‎ (7 C, 4 P)

M

• Mid Glamorgan County Council elections‎ (5 P)
• 20th century in Monmouthshire‎ (15 P)

P

• 20th century in Pembrokeshire‎ (4 P)
• 20th-century Welsh people‎ (5 C, 28 P)
• Welsh Poor Laws‎ (1 C, 1 P)

S

• South Glamorgan County Council elections‎ (6 P)
• 20th century in Swansea‎ (13 P)

T

• 20th century in Welsh television‎ (6 C)

W

• Wales in World War II‎ (2 C, 4 P)