Siljan Ring Siljan Ring The Siljan Ring () is a prehistoric impact crater in Dalarna, central Sweden. It is one of the 15 largest known impact craters on Earth and the largest in Europe, with a diameter of about . The impact that created the Siljan Ring occurred when a meteorite collided with the Earth's surface during the Devonian period, about 376.8 ± 1.7 Ma. This coincides around the first Devonian extinction, the Kellwasser Event or Late Frasnian extinction at 376.1 Ma ± 1.6 Ma. The effects of the impact can clearly be seen in the bedrock in the area. The Cambrian,
Fernando de la Mora (politician) Fernando de la Mora (politician) Fernando de la Mora was one of the founding fathers of Paraguay, and was one of early leaders of the country between 1811 and 1813, but soon lost his power and died imprisoned. The Paraguayan city Fernando de la Mora is named in his honor. He was born in Limpio (formerly known as Tapúa) in 1773, in the family of Cavalry Captain Fernando de la Mora and Ana del Cazal who both belonged to families whose lineage descended from the Spanish conquistador Don Domingo Martínez de Irala. Fernando received a good education. It is presumed