* Indonesia: With over 120 active volcanoes, Indonesia is considered the country with the most active volcanoes. The "Ring of Fire" runs through Indonesia, making it prone to volcanic activity.
* Japan: Another country located on the Ring of Fire, Japan has over 100 volcanoes, with about 110 being active.
* United States: The US has a significant number of active volcanoes, particularly in Alaska and Hawaii.
* Chile: Located on the Pacific Ring of Fire, Chile has a high concentration of active volcanoes.
* Russia: With many volcanoes in the Kamchatka Peninsula, Russia has a large number of active volcanoes.
It's important to note:
* The definition of "historically active" can vary. Some sources might consider volcanoes with eruptions in the last 10,000 years as historically active, while others might define it as having erupted within the last 100 years.
* While these countries have a high number of active volcanoes, they are not necessarily the only ones with significant volcanic activity. Many other countries, like Italy, Iceland, and the Philippines, also have numerous active volcanoes.
To get the most accurate answer, it's best to consult specific sources that define "historically active" in the context of your research.