Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
New Zealand Under 21 (formerly Colts) was first selected in 1955 and played annually until 2007. The Under 21s enjoyed success on the world stage, winning SANZAR/UAR tournaments and world titles in:
2000
2001
2003
2004
In the 2002 Championship New Zealand won 3 games in 4 rounds, losing only to South Africa 18-19. This led to New Zealand playing in the 3rd place playoff where they beat Wales 59-7. South Africa beat Australia 24-21 in the final.
In the 2005 Under 21 Rugby World Championship in Argentina, New Zealand lost 12-16 to South Africa in the semi-final and then beat France 47-21 in the 3rd place play off. South Africa beat Australia 24–20 in the final.
At the 2006 Under 21 Rugby World Championship in France, New Zealand lost 23-40 to South Africa in the semi-final and lost 36-39 to Australia in the 3rd place play off. France beat South Africa 24-13 in the final.
Team 
National sports teams of New Zealand