Revellers celebrate St Patrick's Day in Dublin Getty. Ireland is the best country in the world because it has made the greatest contributions to humanity and the planet, according to a new survey.he UK came seventh overall in the poll, but in a sign Britain's booming tech industry is reaping rewards, it topped the list for the best contribution to science and technology. Meanwhile, war-torn Iraq, Libya and Vietnam ranked joint bottom of the survey.
Lentigo simplex is the most common form of lentigo. A single lesion or multiple lesions (lentigines) may be present at birth or more commonly first develop in early childhood.
Causes. 1  Lentigo is caused by chronic sun exposure. 2  Age may be another cause for lentigo. 3  The presence of large or numerous nevi (a type of birth mark) can cause lentigo maligna. 4  Irrespective of skin color, it is the uneven distribution of the melanin pigment in the skin that results in freckling.