Completed the following sentence: Built in 1971, the circuit hosted two rounds of the Formula One Belgian Grand Prix
1974<unk>durante le temps où la course était supposée alterner entre les circuits wallons et flamands. Designed by Roger Caignie to be a safe alternative to Spa, Nivelles was perhaps "too" safe.<unk> Designed by Roger Caignie to be a safe alternative to Spa, Nivelles was perhaps "too" safe. ️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️<unk>️ Nivelles wasn't popular among the paying spectators since they thought that they weren't close enough to the action.