Dolmen

A dolmen, also known as a cromlech, portal tomb, portal grave or quoit, is a type of single-chamber megalithic tomb, usually consisting of two or more megaliths supporting a large flat horizontal capstone ("table"), although there are also more complex variants. Most date from the early Neolithic (4000–3000 BCE). Dolmens were typically covered with earth or smaller stones to form a tumulus. In many instances, that covering has weathered away, leaving only the stone "skeleton" of the burial mound intact.

It remains unclear when, why, and by whom the earliest dolmens were made. The oldest known dolmens are in Western Europe, where they were set in place around 7,000 years ago. Archaeologists still do not know who erected these dolmens, which makes it difficult to know why they did it. They are generally all regarded as tombs or burial chambers, despite the absence of clear evidence for this. Human remains, sometimes accompanied by artifacts, have been found in or close to the dolmens which could be scientifically dated using Radiocarbon dating. However, it has been impossible to prove that these remains date from the time when the stones were originally set in place.

DZBB-AM

DZBB (pronounced DZ-double-B) (594 kHz AM) - broadcasting as GMA Super Radyo DZBB 594 is a 24/7 news/talk radio station based in Diliman, Quezon City, Philippines, aimed at the Mega Manila market. It is the flagship station of the Super Radyo Stations. Apart of GMA News and Public Affairs, the news division owned by the Radio GMA Network Inc. (RGMA, a subsidiary of GMA Network Inc.) The station's studio is located at the GMA Network Center, EDSA corner Timog Avenue, Diliman, Quezon City, while its transmitter is located at Barangay Panghulo, Obando, Bulacan.

At present, Super Radyo DZBB 594 is considered as one of the top stations in the AM band in Metro Manila and is recognized as one of the most awarded radio stations in the Philippines.

History

As Double B 580 (1950–1989)

DZBB was established on March 1, 1950 by Robert "Uncle Bob" Stewart, in a small office space in Calvo Building, Escolta, Manila with mostly second-hand equipment and an old, surplus radio transmitter. The station was then broadcasting on the frequency of 580 kilocycles. Despite of scarcity of new broadcasting facilities, the station has scored many milestones with its news, senate and congress coverage, breaking news, exclusives, and blow-by-blow accounts of major national events. It also pioneered on trendsetting shows such as Camay Theater of the Air, Lovingly Yours, Helen, Kahapon Lamang, Tawag ng Tanghalan, Newscoop, Kwentong Kutsero and others. Some of these shows eventually went to television. DZBB was also the first to air several live coverage extended not just to news and public affairs, but also to entertainment and educational programs. In 1957, DZBB moved to the new and current home at EDSA, Quezon City.

GMA Network

GMA Network (Global Media Arts or simply GMA) is a major commercial television and radio network in the Philippines. GMA Network is owned by GMA Network Inc. a publicly listed company. Its first broadcast on television was on October 29, 1961, GMA Network (formerly known as DZBB TV Channel 7, RBS TV Channel 7, GMA Radio-Television Arts then GMA Rainbow Satellite Network) is commonly signified to as the "Kapuso Network" in reference to the outline of the company’s logo. It has also been called the “Christian Network” which refers to the apparent programming during the tenure of the new management, which took over in 1974. It is headquartered in the GMA Network Center in Quezon City and its transmitter is located at Tandang Sora Avenue, Barangay Culiat also in Quezon City.

The original meaning of the GMA acronym was Greater Manila Area, referring to the initial coverage area of the station. As the network expanded it changed into Global Media Arts. At present the corporate name is simply GMA Network Inc.