- Biseksualitas
- Bai'at 'Aqabah Pertama
- Palazzo Vecchio
- Gereja-gereja Maria Katolik
- Petrarca
- Nuova Cronica
- Monza
- Macrothelypteris
- Bulbophyllum afzelii
- RER C
- SNCF Class Z 20900
- List of minor planets: 20001–21000
- Wakashū
- Réseau Express Régional
- Mimosa pudica
- Meanings of minor-planet names: 20001–21000
- Bisexuality
- Automation
- Kagema
- Race (human categorization)
