Ricin immunogenic in mice, rabbits, and humans. It has completed two successful clinical trials. Ricin has been involved in a number of incidents. In 1978, the Bulgarian dissident Georgi Markov was assassinated by Bulgarian secret police who surreptitiously shot him on a London street with a modified umbrella using compressed gas to fire a tiny pellet contaminated with ricin into his leg. He died in a hospital a few days later and his body was passed to a special poison branch of the British Ministry of Defence (MOD) that discovered the pellet during an autopsy. The prime suspects were the Bulgarian
Chapel of St Thomas on the Bridge were dismantled, exposing the vaults and columns of the Lower Chapel, an event that was recorded by Edward William Cooke in an engraving published in 1833. Chapel of St Thomas on the Bridge The Chapel of St Thomas on the Bridge was a bridge chapel built near the centre of "Old" London Bridge in the City of London and was completed by 1209. In 1548, during the Reformation, it was dissolved as a place of worship and soon afterwards converted to secular use. The building survived as a dwelling and warehouse until 1747 when the upper storey at street level