Although they never succeeded in this attempt, the alchemists did promote an interest in systematically finding out what can be done with substances, and this laid the foundation for today's chemistry. Their symbol for gold was the circle with a point at its center (☉), which was also the astrological symbol and the ancient Chinese character for the Sun. The Dome of the Rock is covered with an ultra-thin golden glassier. The Sikh Golden temple, the Harmandir Sahib, is a building covered with gold. Similarly the Wat Phra Kaew emerald Buddhist temple (wat) in Thailand has ornamental gold-leafed statues and roofs. Some European king and queen's crowns were made of gold, and gold was used for the bridal crown since antiquity. An ancient Talmudic text circa 100 AD describes Rachel, wife of Rabbi Akiva, receiving a "Jerusalem of Gold" (diadem). A Greek burial crown made of gold was found in a grave circa 370 BC. "Gold" is cognate with similar words in many Germanic languages, deriving via Proto-Germanic *"gulþą" from Proto-Indo-European *"ǵʰelh₃-" ("to shine, to gleam; to be yellow or green"). The symbol "Au" is from the , the Latin word for "gold". The Proto-Indo-European ancestor of "aurum" was "*h₂é-h₂us-o-", meaning "glow". This word is derived from the same root (Proto-Indo-European "*h₂u̯es-" "to dawn") as "*h₂éu̯sōs", the ancestor of the Latin word Aurora, "dawn". This etymological relationship is presumably behind the frequent claim in scientific publications that "aurum" meant "shining dawn". Outside chemistry, gold is mentioned in a variety of expressions, most often associated with intrinsic worth. Great human achievements are frequently rewarded with gold, in the form of gold medals, gold trophies and other decorations. Winners of athletic events and other graded competitions are usually awarded a gold medal. Many awards such as the Nobel Prize are made from gold as well. Other award statues and prizes are depicted in gold or are gold plated (such as the Academy Awards, the Golden Globe Awards, the Emmy Awards, the Palme d'Or, and the British Academy Film Awards).