The word at is an English word, which may act as a preposition.
Atlanta is the capital of and the most populous city in the U.S. state of Georgia, with an estimated 2015 population of 463,878. Atlanta is the cultural and economic center of the Atlanta metropolitan area, home to 5,710,795 people and the ninth largest metropolitan area in the United States.
The attack on Pearl Harbor, also known as the Battle of Pearl Harbor, the Hawaii Operation or Operation AI by the Japanese Imperial General Headquarters, and Operation Z during planning, was a surprise military strike by the Imperial Japanese Navy Air Service against the United States naval base at Pearl Harbor, Hawaii Territory, on the morning of December 7, 1941. The attack led to the United States' entry into World War II.
The United States dropped nuclear weapons on the Japanese cities of Hiroshima and Nagasaki on August 6 and 9, 1945, respectively, during the final stage of World War II.
Atheism is, in the broadest sense, the absence of belief in the existence of deities. Less broadly, atheism is the rejection of belief that any deities exist.
Attention deficit hyperactivity disorder (ADHD) is a mental disorder of the neurodevelopmental type. It is characterized by problems paying attention, excessive activity, or difficulty controlling behavior which is not appropriate for a person's age.
Athens (/ˈæθᵻnz/; Modern Greek: Αθήνα, Athína Greek pronunciation: [aˈθina], Ancient Greek: Ἀθῆναι, Athênai) is the capital and largest city of Greece.
The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the planet Earth and is retained by Earth's gravity.
The Atlantic Ocean is the second largest of the world's oceans with a total area of about 106,460,000 square kilometres (41,100,000 sq mi).
Athena (/əˈθiːnə/; Attic Greek: Ἀθηνᾶ, Athēnā, or Ἀθηναία, Athēnaia; Epic: Ἀθηναίη, Athēnaiē; Doric: Ἀθάνα, Athānā) or Athene (/əˈθiːniː/; Ionic: Ἀθήνη, Athēnē), often given the epithet Pallas (/ˈpæləs/; Παλλὰς), is the goddess of wisdom, craft, and war in ancient Greek religion and mythology.