Lord Ganesha is considered the god of wisdom and remover of obstacles. And Lord Ganesha is worshiped before worshiping any other god.
The story of why Ganesha is worshiped first:
Saint Narada once handed over a mango to Shiva and Parvati. He said that it was a special mango which would bestow eternal wisdom on whoever savours it. There was also a hitch that the mango should not be shared and had to be consumed by one person. Though Shiva and Parvati wanted to handover it over to either of their sons Ganesha and Karthikeya, they were perplexed as to whom they should give it.
Narada stepped in and suggested a solution to the issue. He said that the mango can be given to the one who first succeeds in going around the world thrice . Shiva and Parvati consented to Narada's suggestion. Karthikeya immediately mounted his peacock and set out to accomplish the mission. Lord Ganesha on the other hand simply circumambulated his parents thrice and requested the fruit to be given to him.
When demanded an explanation, Lord Ganesha humbly said that his parents were his world and that no other world existed apart from them. Respect for parents would be the moral of the story on the superficial level. However the very essence of the story stretches beyond the superficially portrayed moral.
It is a fact that eternal wisdom or self realization (the mango) can be cherished only when one is centred in the truth (Shiva and Parvati) and nothing exists apart from the truth. A mind (the act of Karthikeya) that is focused in the outer world is incapable of attaining the truth. An inward turned mind (Lord Ganesha) that is in constant communion with the truth is that which is capable of realising the truth or attaining wisdom.
Lord Ganesha in thus short story reveals the fact that self realization can be attained only with one's vision focused inwards.
Ganesha Chaturthi in the year 1990 was on 19th August.
Ganesha Chaturthi in the year 1986 was on Sunday, 7th September
Please refer a panchangam. 28 August
Ganesha Chaturthi also known as Vinayaka / Vinayagar Chaturthi in the year 1985 was on 19th April.
Ganesh Chaturthi in 2012 is on Wednesday, the 19th of September.
Ganesha Chaturthi in the year 1960 was on 9th September.
September 19, 1974.
23/8/1963
Ganesh Chaturthi is celebrated as the remarkable festival for the auspiciousness of Lord Ganesha. The date of ganesh chaturthi in year 1905 was 2nd September.
Balgangadhar Tilak
The date of vinayaka chathurthi on Wednesday was on 22nd April 2015.Its also known as Ganesh Chaturthi. Ganesha Chaturthi is celebrated by Hindus all over the world as the birthday of Lord Ganesha.
Ganesha Chaturthi in 1997 was celebrated on September 10th. This festival marks the birth of Lord Ganesha and is observed with great enthusiasm, especially in Maharashtra and other parts of India. The date of the celebration varies each year as it is based on the Hindu lunar calendar.