Ключевые слова: 21th, art, background, bird, celebration, cut, day, design, dove, earth, event, faith, festival, fly, freedom, gesture, graphic, happy, heaven, holiday, hope, humanitarian, humanity, icon, international, leaf, love, message, nature, olive, paper, peace, peaceful, pigeon, power, pride, purity, september, social, solidarity, symbol, template, wing, world,