For thousands of years, eggs have symbolised rebirth and new beginnings. The colourful dyed eggs were exchanged during the rites of Spring in pre-Christian times. Adapted by the early Christians, they also became a symbol of the resurrection.
For those who observed Lent , eggs were one of the foods forbidden by the Church so it was a treat to have them again at Easter. During the tsar's reign in Russia, Easter was celebrated more elaborately than Christmas. Among the royal family, the custom of exchanging eggs was taken to the extreme by having jewelled "eggs" made by the goldsmith Carl Faberge.
Chocolate eggs probably appeared thanks to the industrial revolution when it became possible for companies such as Cadbury to manufacture large quantities of special sweets for special times, such as Easter.
The rabbit, another symbol of new life and fertility, no doubt jumped into the mix at this time to appear as the chocolate Easter bunny.
Easter coincides with Northern Hemisphere spring. It is a time in nature when nests of eggs are found hidden away and egg hunts merged into Easter traditions.