Complex sentence: In his youth, Thoroddsen practiced sports among young men from his neighborhood and was involved in the creation of football club Víkingur Reykjavik at the age of twelve, housing the club's inaugural meeting and initially taking the role of club secretary.
Split into simpler sentences: In his youth, Thoroddsen practiced sports among young men from his neighborhood. Emil was involved in the creation of football club Víkingur Reykjavik at the age of twelve, housing the club's inaugural meeting and initially taking the role of club secretary.