The First Bayon Symposium (1996)

A purpose of the first Bayon Symposium was to begin communication with all experts who was engaged in the Bayon conservation and restoration activities. To put it concretely, as defining the significance of the symposium, a conceptual frame work toward making the conservation and restoration of the whole Bayon temple, which JSA was to propose, was confirmed. Also reports and discussions were made on the history of Bayon, a basic policy for the monument restoration, and investigation, maintenance, administration activities in the Bayon Northern Library. Through these occasions in the first Symposium, all participants recognized the importance of information exchange, sharing and cooperation regarding the research result by the teams of each country. As a conclusion and themes to carry on, the Symposium called for understanding a historical background of the monuments, providing, exchanging and sharing information.

The Second Bayon Symposium (1997)

A purpose of the second Bayon Symposium was to collect, learn and understand technical experiences and research from restoration of Bayon and other monuments and to share them as common knowledge and technology. To enlist more concrete terms, they are a summary report of the questionnaire to experts in various fields regarding establishing the conservation and restoration plan for the Bayon temple, a restoration method of stone cracks, a method for investigating status of the monuments, a method for scaffolding prior to the restoration work, a restoration method for sand filled foundation, a method for restoring stone block with bas-relief, a method for environmental and ground investigation prior to establishing restoration plan and so on. There were reports and discussions on these practical and technical themes.

In this second symposium technical problems with the restoration of the monuments were discussed lively, especially major concern was shown about the material of the monuments. As a conclusion and theme to carry on, the symposium called for further understanding to technical problems arising from the characteristics, structural strength and collapse mechanism of the material.

The Third Bayon Symposium (1998)

A purpose of the third Bayon Symposium was to study the conservation and restoration activities of the monuments from technical and philosophical viewpoints through two-day discussion in depth. The agenda for reporting and discussions are historical characteristics of Bayon, its architectural evaluation, about the Nara Declaration, Khmer tradition and science, Bayon and Angkor Krau village, a draft of the Bayon five-year plan, a structural behavior of towers at the Angkor monuments, a solution to the problems in preserving bas-relief at Angkor Wat-success and failure, cases of restoration master plans for Notre-Dame, Paris and Strasburg Cathedral and so forth.

In the third symposium, in deference to the Cambodian traditional culture, ethical consideration was called for in a series of conservation and restoration activities. It was desired that participants re-recognize religious value through these restoration activities. On the technical side we discussed on the treatment of new material, while agenda in 1997 was about restoration method of past material.

As a conclusion and themes to carry on, the symposium called for restoring traditional culture and religious value in Cambodia, updating the Bayon master plan, architectural conservation plan, management plan and environmental protection. From the third symposium we have included overseas cases other than the Angkor region.

The Fourth Bayon Symposium (1999)

A purpose of the fourth Bayon Symposium is to study on scientific measures to structural crisis of the Bayon Central towers and on philosophical issues. In concrete terms reports and discussion are made regarding on-going activities at Bayon, a draft for the conservation and restoration plan for the Bayon temple, the restoration as a live temple, upper structure of the Khmer architecture, in particular a method for restoring tower-shape structure, a case of restoration for the Leaning Tower of Pisa and so forth.

In the fourth symposium, agenda began from crucial leaning of the Central towers of Bayon to lead toward standardization of structural analysis method for other monuments. Furthermore continuing the discussion on ethical issues from previous year we should consider temples as a live substance and re-confirmed that the conservation and restoration activities were contributed to Cambodia.

As a conclusion and themes to carry on, the symposium called for the contribution to the Cambodian history and tradition, standardization of structural analysis method of the monuments, contributing to training young Cambodian human resources in the context of a live temple of theirs.

The Fifth Bayon Symposium (2000)

A purpose of the fifth Bayon Symposium is to study the Bayon bas-relief and deity faces from art history viewpoint and how we should handle study results in many different fields and their documentation. Reports and discussions were made on meanings of faces at Bayon, a method for preserving bas-reliefs, progress in the works related to the Bayon temple conservation and restoration plan, conservation policy for the Tani kiln site monument, cooperation among international teams on documentation, a case of restoration of Trojans Column, Rome, other restoration cases in Thailand, Pakistan, Syria and so forth.

In the fifth symposium agenda covered various fields. Necessity is called for establishing guidelines for bas-relief restoration for the whole Angkor monuments and grasping a level of burden to Bayon caused by tourist visits. Furthermore, in order to use accumulated study results from participating countries efficiently, it was proposed to file these reports at UNESCO/APSARA Documentation Center and to compile information to APSARA in a timely fashion.

As a conclusion and themes to carry on, the symposium called for a close investigation in tourism tendency in a rapid transition, establishment of the guideline for bas-relief restoration and utilization of the Documentation Center.

The Sixth Bayon Symposium (2001)

A purpose of the Sixth Bayon Symposium is to make a comparative study on total management method for, not only conservation and restoration but also utilization of the enormous and important monuments of the East and West.

In the sixth symposium, in particular from the necessity of establishing total management of enormous monuments, reports were made on preceding cases of the East and West such as the Colosseum, Borobudur and Nara (Heijyo-kyo). It was proposed that these precedents must be utilized at Angkor. Also revisit to the study on functions of water supply at Bayon and the whole Angkor Thom was desired.

As a conclusion and themes to carry on, the symposium called for revisit to the Bayon master plan in terms of investigation from point of architecture, art history, and archeology and in terms of conservation from point of conservation and restoration planning, conservation activities, restoration activities, and maintenance planning. Also establishing management system on overall monuments in the whole Angkor region was desired.

The Seventh Bayon Symposium (2002)

A purpose of the Seventh Bayon Symposium is to put forward the final discussion to establish the Bayon Master Plan. Also to compare the hydraulic researches of Bayon and Angkor, stone conservation technique of Asia and non-Asian countries of the world.

In the seventh symposium, it was suggested to not only to share the technical information, but consider the ethnology and habitat of the local people living in Angkor, and also to consider the future of Angkor by putting all the information together, such as the geographical information, hydraulic information and so on.

As a conclusion and themes to carry on, the symposium called for to unify the regional information comprehensively and take account of the completion of the Bayon Master Plan by considering Angkor and further more area.