a brilliant idea the city became the leading trade fair location in the world. you will annoy missing a brand new trade show was created here the sample for until 895 when it was 1st held trade fairs the world over took the form of trading 1st of all the merchandise was brought to the fairgrounds and offered for sale with the industrial revolution conditions changed sellers looked around for a new kind of fare from then on the sample fare was the type that dominated the world's trade fairs only one sample product was presented buyers made a contract and it was delivered and this invention then conquered the world in 117 the double m. trademark was copyrighted. but in. the double entry for a logo has become a trademark for like a seat. in the city center treat for buildings were constructed during the 19th century the best known and most famous is the made love massage. and