From Niels his website (translated by me):
"Circus Piccolini and all pupils of our school in Pollinkhove organised a circus show in 2002. I started with the diabolo when I saw Dennis from the circus performing.
When I got a diabolo, I learned a few tricks pretty fast: tossing up, under the leg orbits, trapeze stalls... I was 7 years old and with some help of my dad I learned very much new tricks from the internet. I learned most basic tricks from www.diabolotricks.com
. A year and a half later I went to the juggling convention in Ieper (Belgium). I saw many other diabolists. I followed some workshops, and learned a few combo's. I also noticed the possibilities with 2 diabolos. My new challenge! After 2 weeks of practising I learned to spin my 2 diabolos 2,5 minutes in the string."
(Sorry for my bad English, I'm just 14 and still at school