Three states, Chihuahua, Michoacán and Querétaro, along with three countries, Argentina, Colombia and Chile, were the special guests as they celebrated their bicentennials in the same year.
The special guests included three Mexican states – Chihuahua, Michoacán, and Querétaro – and three foreign nations – Argentina, Colombia, and Chile – which shared a common milestone of marking 200 years since their founding in the same calendar year.