1 Throughout its first 73 years until March 2002, the Best Actor Oscar had only been won by a black man once-by SIDNEY POITIER for 2  . The Lilies In The Field  in 1963, despite the emergence of strong roles for coloured actors and actresses from the 1960s onwards.
The source or beginning of a river is called the 'headwater'. The beginning of a river is known as the source. The source or beginning of a river is called the 'headwater'. The beginning of a river is known as the source.
The transition between river and ocean, bay or lake is known as a delta. Most rivers have a delta, an area where the river divides into many channels and river water mixes with sea or lake water as the river water reaches the end of its journey.A famous example of a delta is where the Nile River meets the Mediterranean Sea in Egypt, called the Nile Delta. river grows larger as it collects water from more tributaries. Streams usually form rivers in the higher elevations of mountains and hills. The areas of depression between hills or mountains are known as valleys.