Need a reason to be happy？ Then you will be happy to know that March 20th is the International Day of happiness．

    The united Nations set up the International Day of happiness in 2012 to remind us that happiness is a basic human goal and right．

    It was celebrated for the first time in 2013． On that day， we celebrated hundreds of " Happy Heroes" ﹣ those who did so much to bring happiness to others． They helped the homeless to live a comfortable life and the poor kids to go to school．

    The 2014 Day of Happiness actions asked people to share pictures of making them happy． People all over the world showed their favourite pictures on the Internet． "It's exciting to see so many people sharing photos of what makes them happy．" Joe， a senior high school students from Canada said． The 2015 Day of happiness actions gave attention on relationships． Modern society is leaving more and more people felling lonely． On that day， thousands of people all around the world reached out to make new connections with others． They visited their neighbours， gave calls to the doctors they didn't know very well， drove the strangers to station for free…

    The theme of the 1029 Day of Happiness is "Happier Together"． It encourages people worldwide to focus on what we have in common， rather than what divides us．

（1）When is the International Day of Happiness？

　　

（2）Why did the United Nations set up the International Day of Happiness？

　　

（3）How did Joe feel when he saw many people sharing photos？

　　

（4）According to the passage， more and more people are feeling happy in modern society，aren't they？

　　

（5）What is the theme of 2019 Day of Happiness？