The view stating that Edo was regarded as a capital because of its political location, but in the end of the Edo period, Kyoto became the capital because it came to be the center of politics, before the capital moved to Tokyo (Edo) again.
江戸は政府の所在地で首都と意識されていたが、幕末に政治の中心となった京都が首都となり、更にそれが東京に移ったとするもの。