Lake Victoria, at 69,464 sq km.
Lake Victoria is relatively young at about 400,000 years. There is no definitive answer that I could find but there are many in the millions of years range and even a suggestion on Wikipedia that the Great Lakes foundation is around 1.5 billion years old and is the result of tectonic activity.
Lake Baikal is the deepest freshwater lake in the world and is located in Central Siberia, Russia. It is also the oldest and largest freshwater lake by volume, containing approximately 20% of the world's unfrozen freshwater reserve.
Lake Baikal in Russia is an example of a tectonic lake. It was formed in a rift zone where tectonic plates are pulling apart, creating a deep basin that eventually filled with water. Lake Baikal is the world's oldest and deepest freshwater lake, with unique biodiversity due to its ancient origins.
The largest freshwater fish found in British waters is the wels catfish. Although in European lakes it can grow to as much as 16 feet in length, specimens of that size have not been found in Britain, with the size here being about a third of that.
The deepest freshwater lake on Earth is Lake Baikal in Siberia, Russia. It reaches a maximum depth of about 5,387 feet (1,642 meters). It is also the world's oldest and largest freshwater lake by volume.
Lake Vänern is in Sweden. It is the largest lake in Sweden and the third largest lake in Europe.
The worlds oldest lake is in Russia, and is called " Lake Baikal".
It is the world's oldest lake
Lake Baikal
The third largest lake in the world is in Lake Victoria, in Tanzania-Uganda.
The oldest lake in the world is Lake Baikal. It is believed to be at least 25 million years old and is located in south-east Siberia. Baikal is a freshwater lake and contains about 20 percent of the world's unfrozen fresh water.
Lake Baikal is the oldest lake in the world and is located in Russia on the continent of Asia.
Lake Baikal is the deepest oldest lake in the world and the largest freshwater lake by volume.
Lake Tanganyika in Africa is considered to be the world's longest freshwater lake. It is also the second-oldest and second-deepest lake in the world, holding about 18% of the world's freshwater supply.
Victoria Lake in Central Africa.
Lake Baikal is the world's oldest lake at 25 million years Located in the south of the Russian region of Siberia, between Irkutsk Oblast to the northwest and the Buryat Republic to the southeast, it is the most voluminous freshwater lake in the world, containing roughly 20% of the world's unfrozen surface fresh water.
Lake Biwa. It is said to cover about 259 sq. miles. It is also one of the oldest in the world.
Caspian Sea.