Hakkunde nɗuuɓu 1964 e 1968, ɓe senditiiri se ɓe nƴibi badal man nder blocks mawndee (yaran ton 30 yauugo ton 20), haa daayugu cakka mita 65 e mita 200 ɓaawo labi ndiyam , ɗo challenge mawndee haa ilimu taarihhawol himɓe nane.