ROI Montessori, India - Maria Montessori's Timeline Children of Royal Oak Internatio (ROI) Montessori in Nashik, Maharashtra State, India celebrate the 150th birthday of Maria Montessori by sharing a timeline of her life. Tags Maria Montessori Peninsula Montessori Institute Celebrates Montessori School of Varna, Bulgaria Children Sing Montessori China Celebrates Message from AMI 150th Birthday Maria Montessori Interview Load More