The victory of Jackson indicated a westward movement of the centre of political power. He was also the first man to be elected president through a direct appeal to the mass of the voters rather than through the support of a recognized political organization
I think that the best answer is Albrecht Durer. Durer published books on mathematics and proportions, and additionally he was an artist using the techniques of painting, drawing and printing.
Performance-in-public syndrome is the right answer because John is having issues playing when he is in pubic but not when he is alone, therefore playing in front of other people is causing John the anxiety.
