First presentation

The week before Pentecost, Jenny and I had our presentation of our first results on the economic backgrounds of a world's fair. We had found some very useful information. Nevertheless, it was not sufficient in order to present everything that a world's fair's financing includes.
After our first results, we now have to search for the differences of a world's fair and a trade fair. The Chicago World's Fair in 1933 was the first exposition ever, that was held without any governmental financial backup, but it was not a trade fair. So where can we draw a line? That is what we will find out.
Moreover, we still have to look for the economic impacts after the world's fair.
I'll go on and search for some articles and hope to be lucky :)