en.wikipedia.org/wiki/Iron_age

This phrase misidentifies the location of the monument. The Black Pyramid of King Amenemhat III is in Dahshur, not Abusir. Egypt’s Ministry of Tourism and Antiquities page for Dahshur explicitly lists “the Black Pyramid of King Amenemhat III” among the pyramids at Dahshur. So calling it the “Black Pyramid of Abusir” is geographically incorrect.

This sentence assigns Citânia de Briteiros to the wrong cultural/geographic group. The Sociedade Martins Sarmento page on the site describes it as one of the major protohistoric settlements of the Iberian Peninsula and places it among the castros of the Northwest Peninsula, with material displayed in the Museum of Castro Culture. Separately, the Celtiberia Histórica site defines Celtiberia as the territory in the mountainous zone of the Iberian and Central ranges in Spain. That is not northwest Portugal. So Briteiros should not be described as a Celtiberian stronghold.

The article dates the arrival of iron in Japan too late. A Japan Tourism Agency explanation of the Yayoi period states that “Iron and bronze working in Japan began with the Yayoi people” and describes metal tools as characteristic of the period. Japan Society likewise says the Yayoi period was marked by “the mining, smelting and casting of bronze and iron” and that iron tools from Korea have been found in the oldest Yayoi sites. Those sources contradict the claim that iron items only entered Japan in the late Yayoi or Kofun period.

The caption gives the wrong size ranking for the Willamette Meteorite. The American Museum of Natural History, which displays the meteorite, describes it as “the sixth-largest in the world.” That directly contradicts the article’s statement that it is the thirteenth largest.