16 of February
It is 14-21 Febuary 2009 The parades start on Friday 20th Febuary. Ashes day (the end of carnaval) is on Wednesday, 25th.
The roots of the Rio de Janeiro Carnival date back over 200 years. During the four days leading up to Ash Wednesday, the beginning of Lent, revelers let loose to prepare for the 40 days of abstinence ahead. Carnival was introduced in Rio de Janeiro by the Portuguese around 1850. Original carnival events were uncivilized and not sanctioned by the Brazilian government. Participants played in the streets, throwing water, mud and food at each other. Read more: Rio de Janeiro Carnival History | eHow.com http://www.ehow.com/about_6693512_rio-de-janeiro-carnival-history.html#ixzz1nGlrz0vu
In general, the carnival lasts for three days, the days preceding Ash Wednesday. In contrast to Lent, a time of penance and deprivation, these days are called "fat", especially the Tuesday (Fat Tuesday, also known by its French name Mardi Gras), the last day before Lent.In the United States, the term is synonymous with Mardi Gras Carnival.
40 days before Easter.
First of all it is not an entire week, it is just three days, and it is called Carnival.
Assuming a start date of March 20, 2010, there are 54 days between January 25 and the start of spring.
In the course of history there are several famous days in history. The most important for the western civilization is the day the Battle of Marathon took place [12 September 490 BCE] when 11.500 Athenians and citizens of Plataea defeated the larger numbers of the invaded Persian army under Datis and Artaphernes sent by Darius I
Between January 1, 2010 and August 1, 2010 there were 30 weeks and 2 days.
17 Days
Carnival is an annual festival in Brazil; it is a four days of pure dance and entertainment that attracts thousands of people from all corners of the world.
Trinidad carnival season officially begins on Boxing Day (the day after Christmas) and continues until the mid hours of Ash Wednesday. Activities such as band launchings and media launches for Carnival bands start as early as July.
Carnival typically lasts for several days, culminating in the days leading up to Ash Wednesday, which marks the beginning of Lent in the Christian calendar. In many places, Carnival festivities can start as early as January and culminate in a grand celebration during the final days before Ash Wednesday, commonly referred to as "Mardi Gras." The most intense celebrations often occur in the final weekend, lasting from Friday to Tuesday. Thus, the main event generally lasts about four to five days.