A message from the Second World War attached to the leg of a dead pigeon has proved difficult to understand.
Callum and Neil learn more about secret codes and messenger birds.
This week's question:
Who was the first person recorded to use written codes to keep his communications secret?
a: Julius Caesar
b: King Harold
Listen out for the answer at the end of the programme.
End of Section
- a pigeon
a common bird which can be trained to fly back to a particular place from wherever it is released
- a chimney
a brick structure in a house which takes smoke from a fireplace up and out of the house, usually through the roof
- to crack / break (a code)
to work out the meaning of a hidden message
- a one-time pad
a tool or technique for creating unbreakable codes
unique, unpredictable, without any pattern