Japan is a founding member of the BIE, and the country has successfully organised five Expos under the auspices of the Organisation. In 1970, Osaka Prefecture hosted Asia’s first World Expo, attracting over 64 million visitors, making it the most visited Expo of the 20th century. Since then, Japan has organised three Specialised Expos – in Okinawa in 1975, in Tsukuba in 1985 and in Aichi in 2005 – as well as one Horticultural Expo in Osaka in 1990. In 2018, it was elected by BIE Member States to organise World Expo 2025 in Osaka.