Texas Subcategories This category has the following 7 subcategories, out of 7 total. / 20th-century disestablishments in Guinea-Bissau (2 C) 20th-century establishments in Guinea-Bissau (4 C)0–9 20th century in Portuguese Guinea (10 C) 1970s in Guinea-Bissau (6 C, 1 P) 1980s in Guinea-Bissau (4 C) 1990s in Guinea-Bissau (12 C)Y Years of the 20th century in Guinea-Bissau (18 C)