Complex sentence: Schelderup, wearing a helmet, performed in a skiing competition on Joppenbergh later that year; in July 1937, the village coated the slope with Borax and held a summer skiing competition.
Split into simpler sentences: Schelderup, wearing a helmet, performed in a skiing competition on Joppenberg later that year. In July 1937, the village coated the slope with Borax and held a summer skiing competition.