Einstein was 16 (not 17) when he took the entrance exam for the prestigious Zurich Polytechnic in 1895 (having spent the first half of 1895 with his parents in Italy, without schooling).
He didn't have to retake the entrance exam, as his excellent exam results at the Swiss Cantonal school he attended in 1895-96 sufficed.
Einstein was 16 (not 17) when he took the entrance exam for the prestigious Zurich Polytechnic in 1895
(having spent the first half of 1895 with his parents in Italy, without schooling).
He didn't have to retake the entrance exam, as his excellent exam results at the Swiss Cantonal school he attended in 1895-96 sufficed.