WRT to funny units consider this thread (in German): https://ruhrpott.social/@Matze/110812742577889798 Matze wrote: I read the 'as big as a song thrush' as a size and I find that we should set 'song thrush' as a standard unit for 20-22 cm. Text problem: Calculate how many square song thrush amount to a Saarland. (Saarland is the smallest federal country of Germany that is not only a city and often quoted for size comparison.) Magdalena calculated that with a given song thrush size of 20cm, one square song thrush is 400 cm² and a Saarland is about 64,250,000,000 square song thrush. ;) HR