Norooz - Eid-e Shoma Mubarak
In harmony with the rebirth of nature, the Iranian New Year Celebration, or NOROOZ, always begins on the first day of spring.
Norooz ceremonies are symbolic representations of two ancient concepts - the End and the Rebirth; or Good and Evil.
A few weeks before the New Year, Iranians clean and rearrange their homes. They make new clothes, bake pastries and germinate seeds as sign of renewal. The ceremonial cloth is set up in each household.
Troubadours, referred to as Haji Firuz, disguise themselves with makeup and wear brightly colored outfits of satin. These Haji Firuz, singing and dancing, parade as a carnival through the streets with tambourines, kettle drums, and trumpets to spread good cheer and the news of the coming new year.

The origins of Norooz are unknown, but they go back several thousand years predating the Achaemenian Dynasty.
The ancient Iranians had a festival called "Farvardgan" which lasted ten days, and took place at the end of the solar year. It appears that this was a festival of sorrow and mourning, signifying the end of life while the festival of Norooz, at the beginning of spring signified rebirth, and was a time of great joy and celebration.
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I CONGRATULATE TO ALL IRANIAN PEOPLE ANYWHERE AROUND THIS MOTHER EARTH.

((Fara Residane Norooz-e Baztani Ra Be Shoma Va Khanevadeh Gerami Tabrik Gofteh Va Sali Pur As Salamati Va Shadkami Barayetan Arezoomandam.))

I HOPE IN THE NEW YEAR [ 1386 ], YOU WILL HAVE A BEAUTIFUL PEACEFUL LIFE WITH GOOD HEALTH AND LOTS OF SUCCESS.

EID-e Shoma Mubarak
Dom-e Shoma secharak!

Who is Hussain (Peace be upon him/her)?

With the passing away of his brother Hassan (pbuh) in 50AH, Hussain (pbuh) became the leader of the household of the Holy Prophet (pbuh). He respected the agreement of peace signed by Hassan (pbuh) and Muawiya. He continued with the responsibility of looking after the religious needs of the people. An example of the depth of his perception can be seen in his beautiful du'a (supplication) on the day of Arafat, wherein he begins by explaining the qualities of Allah, saying:
"(Oh Allah) How could an argument be given about Your Existence by a being whose total and complete existence is in need of you? When did you ever disappear so that you might need an evidence and logic to lead (the people) towards You? And when did You ever become away and distant so that your signs and effects made the people get in touch with you? Blind be the eye which does not see You (whereas) You are observing him. What did the one who missed You find? And what does the one who finds You lack? Certainly, the one who got pleased and inclined toward other than You, came to nothingness (failed)."
On the other hand, we have Yazid, whose father (Muawiya) and grandfather had always tried to sabotage the mission of the Holy Prophet. Yazid was a pleasure-seeking person, given to wine drinking and playing with pets.
The revolution of Hussain (pbuh) was an Islamic movement spearheaded. The principles and laws of Islam demanded that Hussain (pbuh) act to warn the Ummah of the evil situation which it was in, and to stand in the way of the deviating ruler. As Hussain (pbuh) himself remarked when he left Madina for the last time, "I am not rising (against Yazid) as an insolent or an arrogant person, or a mischief-monger or tyrant. I have risen (against Yazid) as I seek to reform the Ummah of my grandfather. I wish to bid the good and forbid the evil.

For further info, you could look at the following link:

http://en.wikipedia.org/wiki/Imam_Hussain