Complex sentence: The Christmas Aeroplane Company was an American aircraft manufacturer founded in October 1909 to produce an aircraft, initially with $1,200 in funding, followed by an additional $2,500.
Split into simpler sentences: The Christmas Aeroplane Company was an American aircraft manufacturer. It was founded in October 1909 to produce an aircraft, initially with $1,200 in funding, followed by an additional $2,500.