Ключевые слова: annual, awareness, blue wooden background, celebration, chalkboard, colorful, commemoration, culture, decoration, distressed wood, easel, educational, event, gratitude, history, holiday, international, labor, labor day, may, message, observance, painted, respect, rights, rustic, seasonal, sign, social, spring, texture, traditional, tribute, typography, union, vintage, work, workers, written, yellow text,