What is associated with: adopted in 1929 the flag of this independent state includes the keys to heaven?

Based on the clue 'adonijah the fourth son of this biblical king was ...', what is the answer? Based on the clue 'adopted baby of barney betty rubble', what is the answer? Based on the clue 'adopted by an irish regiment kiplings kimball ohar...', what is the answer? What is associated with: adopted in 1906 by international agreement this became the telegraphs standard distress signal? What is associated with: adopted in 1965 ontarios flag features 3 of these leaves? What is associated with: adopted in 1980 the flag of this middle eastern nation is seen here? What is associated with: adopted in 1994 seen here the flag of this african nation reflects its racial ethnic diversity? What is associated with: adopted in 2005 pan de campo is texas official state this?