When did chocolate Easter eggs replace traditional painted chicken's eggsin the UK?

Chocolate Easter eggs began to replace traditional painted chicken's eggs in the UK during the mid to late 19th century, with the first solid chocolate egg being produced in 1873 by Fry's of Bristol. The popularity of chocolate eggs grew throughout the Victorian era, as advancements in chocolate-making techniques allowed for more elaborate designs and flavors. By the early 20th century, chocolate Easter eggs had become a widely accepted symbol of Easter celebrations in the UK.