Complex sentence: The first such event was held in 1970 in the dry bed of Todd River between two Lions club members, in an ephemeral river in the southern Northern Territory, and became a part of the Alice Springs Centenary Year Celebrations.
Split into simpler sentences: The first such event was held in 1970 in the dry bed of Todd River between two Lions club members, in an ephemeral river in the southern Northern Territory. It soon became a part of the Alice Springs Centenary Year Celebrations.