Why is 21st June celebrate as a yoga day ?

The 21st of June is celebrated as International Yoga Day because it is the summer solstice, the longest day of the year in the Northern Hemisphere, and is considered an auspicious day for practicing yoga.

The United Nations declared June 21st as International Yoga Day in 2014, following a proposal made by India's Prime Minister, Narendra Modi. The day is intended to raise awareness about the numerous physical and mental benefits of practicing yoga, and to promote the practice of yoga worldwide.

Yoga is an ancient practice that originated in India over 5,000 years ago. It is a physical, mental, and spiritual discipline that includes various postures, breathing exercises, and meditation techniques. The practice of yoga has been found to improve physical health, reduce stress, increase flexibility, and promote mental clarity and emotional well-being.

The International Day of Yoga is celebrated on 21st June every year. It was first proposed by India's Prime Minister, Narendra Modi, during his speech at the United Nations General Assembly in 2014. The proposal was then supported by a total of 177 countries, and the United Nations declared 21st June as the International Day of Yoga in December 2014.
The date of 21st June was chosen because it is the summer solstice, which is the longest day of the year in the Northern Hemisphere and has special significance in many parts of the world. This day has been celebrated as a special day for thousands of years in many cultures and traditions.

Yoga is an ancient Indian practice that promotes physical, mental, and spiritual well-being. It is a holistic approach to health and wellness, and has gained popularity around the world in recent years. The International Day of Yoga is a way to raise awareness about the benefits of yoga and to promote its practice worldwide.