Note 50 — Front matter (continued 5)

The Siamese months are lunar months; each is divided into two parts, i.e. Khang Khun and Khang Ram, waxing and waning moon. Six of the months have thirty, and six twenty-nine days. To compensate for the deficiency of the eleven days which are required to make a full solar year, they have an intercalary month of thirty days once in three years, and there being still a loss of about three days in nineteen years, this is supplied by an arbitrary addition of a day to the seventh month of such years as may be selected by the Brahmin astrologers, whose business it is to observe the sun's path in the heavens, and to announce all variations in the calendar. At the very moment of the sun's crossing the equator, they make proclamation of the advent of each new year, accompanied by a burst of music and by the firing of great guns, both from the palace and the city walls.

The Siamese have two cycles, one within the other; the greater is twelve, and the lesser ten years in duration. Every year in each cycle has its own peculiar name. Their sacred era is reckoned from the time of the death of the Buddha (2415). It is denominated Buddha Sakarat. Their civil era is called Choola Sakarat, and is reckoned from the time of its establishment (1233) by P'hra Rooang, a Siamese king of great celebrity.