Dr. Preciosa S. Soliven opens the first Montessori Children’s House at Syquia Apartments in Malate, Manila, backed by Operation Brotherhood founded by Architect Oscar Arellano.

1966 Historical Photo


A second grant is given to Dr. Soliven to receive further Montessori training in Bergamo, Italy. The first grant had been given in 1964 for Dr. Soliven to train in the Montessori method of education in Perugia, Italy.

1969 Historical Photo


“Montessori For the Home” and “Montessori for Everyone” television programs are aired consecutively by ABS-CBN.

1970–1972 Historical Photo


O.B. Montessori Pre-school opens at Russell House in Pasay City.

1971 Historical Photo


O.B. Montessori Center (OBMC) responds to the fervent requests of parents and establishes its Grade School at the Lichauco House in Sta. Ana.

1972 Historical Photo


OBMC opens at Dasmariñas Village in Makati.

1973 Historical Photo


OBMC founds a campus on Sto. Entierro Street in Angeles City, Pampanga. This campus later moves to the Villa Gloria Subdivision in 1984. In 2006 the school moves to its present location at the MacArthur Highway.

1975 Historical Photo


OBMC opens its Greenhills Campus in San Juan City and moves its headquarters there.

1976 Historical Photo


The OBMC Professional Highschool is established, again upon the request of parents. It is patterned after Italy’s Montessori Scuola Professionale and the various academic and technical schools in the USA, Europe, Canada, and Australia visited by Dr. Soliven.

1983 Historical Photo


Dr. Soliven establishes the O.B. Montessori Child and Community Foundation, Inc., and seven Pagsasarili Preschools in economically challenged communities of Metro Manila. She also sets up the Mothercraft Training and Literacy Course for Village Mothers that will win the 1993 UNESCO International Literacy Award in New Delhi, India. (Pictured is the first established Pagsasarili Preschool in San Martin de Porres, Cubao, Quezon City.)

1983–1987 Historical Photo


Dr. Soliven is elected as the Philippine representative to the UNESCO Paris Executive Board and eventually becomes an active member of the Education Committee of UNESCO Philippines from 1990 to 2001.

1986 Historical Photo


The Mt. Pinatubo Hidden Temple Shrine is built at Palan, San Marcelino, in Zambales.

1992 Historical Photo


Sara Soliven de Guzman, daughter of Dr. Soliven, completes her Montessori grade school training at the AMI-certified Montessori institute of Milwaukee, USA. The Future COO joins the faculty of OBMC later in the year.

1993 Historical Photo


Dr. Soliven is designated CEO of OBMC.

1995 Historical Photo


Dr. Soliven organizes the Federation of Philippine Montessori Schools to arrest the mushrooming of false Montessori Schools in the country.

1997 Historical Photo


OBMC establishes its Las Piñas Campus.

1998 Historical Photo


Sara Soliven De Guzman receives her appointment as COO of OBMC.

2001 Historical Photo


OBMC establishes its Fairview Campus.

2010 Historical Photo


OBMC marks 50 years of upholding the cause of the child and serving the nation.

2016 Historical Photo


Sara Soliven-De Guzman is conferred the honorary rank of Commodore in the Philippine Coast Guard Auxiliary for her significant contribution to the PCG mission of environmental protection, humanitarian assistance, disaster response, and youth development. She is also inducted as a member of the AFP General Headquarters and Headquarters Service Command.

2019 Historical Photo


Commodore Sara Soliven-De Guzman was promoted to the rank of Auxiliary Rear Admiral for her unprecedented contributions to accomplishing the mission and functions of the Philippine Coast Guard and its Auxiliary force. Most notable of these is the establishment of a radio repeater in Alfonso, Cavite, and the community centers in seven different Coast Guard Districts.

2023 Historical Photo