Simplify the following text for a Grade 11 native English-speaking person.
Original: In addition , at various times , it included Aden Colony ( from 1858 to 1937 ) , Lower Burma ( from 1858 to 1937 ) , Upper Burma ( from 1886 to 1937 ) , British Somaliland ( briefly from 1884 to 1898 ) , and Singapore ( briefly from 1858 to 1867 ) .
Simplified: The colony of Aden came under the same government in India from 1858 to 1937 , and so did British Somaliland ( now part of Somalia ) from 1884 to 1898 and Singapore from 1858 to 1867 .