1A

• 1A (comics), a comic book robot • 1A (radio program), an American radio program ==Politics==

• • First Amendment (disambiguation), the first amendment of various legislation ==Science and technology==

• Group 1A, an obsolete designation for the group 1 elements • AMY1A, a human gene • Alpha-1A adrenergic receptor, a human gene • Interferon beta-1a, a drug • Meltwater pulse 1A, a period of rapid post-glacial sea level rise, 13,500–14,700 years ago • Melatonin receptor 1A, a human gene • Metallothionein 1A, a human gene • MH-1A, a nuclear power reactor and the first floating nuclear power station • Vasopressin receptor 1A, a major receptor type for vasopressin ==Sports==

• Croatian 1A Volleyball League • 1. A SKL, the 2002–2006 name of Premier A Slovenian Basketball League ==Transportation, military and space==

• Adcox 1-A, an American 1929 biplane • Astra 1A, a 1988 satellite • Class 1-A, an American military service classification • Little Joe 1A, a 1959 unmanned NASA launch • Mercury-Redstone 1A, a 1969 NASA mission • Packard 1A-1500, a 1929 piston aircraft engine • Shin Meiwa US-1A, a Japanese anti-submarine warfare aircraft • Sisu 1A, an American 1950s sailplane • Türksat 1A, a Turkish satellite • List of highways numbered 1A ==See also==