Weaning is the process of gradually introducing an infant human or other mammal to what will be its adult diet while withdrawing the supply of its mother's milk. In the UK, weaning primarily refers to
Baby being offered baby food
A shellfish diver prepares for her work as a toddler nurses. (Japan, c. 1806)
1938 drawing of a calf weaner nose ring. This was strapped to the calf's face and made the calf's attempts to suckle very uncomfortable for the dam.
In Western countries extended breastfeeding usually means breastfeeding beyond the age of 12 to 24 months, depending on the culture.
Weaning
…Baby-led weaning Extended breastfeeding Birth spacing…
Two-year-old breastfeeding
Ethiopian child breastfeeding