Un dato interesante sabias que si ves bien tu ojo puedes ver que tienes una bolita negra pero y cuando hace contacto con la luz la bola del ojo se hace mas pequeña el ojo esta protejido con una bola color tranparente dentro del ojo tenemos otra bolita muy chiquita es del color tranparrente por ejemplo si yo veo en un ojo puedo ver el reflejo me ami nos ayuda a tener la viata bien si ves bien si quitas la boolita y ves con atencion se ve alreves

The investiture controversy began as a power struggle between pope gregory vii (1072–85) and henry iv, holy roman emperor (1056–1106).[2] a brief but significant struggle over investiture also occurred between henry i of england and pope paschal ii in the years 1103 to 1107, and the issue played a minor role in the struggles between church and state in france, as well.by undercutting the imperial power established by the salian emperors, the controversy led to nearly 50 years of civil war in germany, and the triumph of the great dukes and abbots. imperial power was finally re-established under the hohenstaufen dynasty. historian norman cantor: