Portal:Indonesia/Selected anniversaries/October

• 5 October 1945 – The Indonesian National Armed Forces are established as the Tentara Keamanan Rakjat
• 12 October 2002 – A series of blasts in Bali kill 202, the most devastating terrorist attack in Indonesian history
• 17 October 2023 – The Whoosh High-speed rail (pictured) inagruated by President Joko Widodo which connecting Jakarta to Bandung, and first High-speed rail in ASEAN and Southern Hemisphere
• 20 October 1999 – The first freely-elected President of Indonesia, Abdurrahman Wahid, takes office
• 28 October 1928 – At the Youth Conference in Batavia, the Youth Pledge, promoting a united Indonesia, is read
• 28 October 1928 – WR Supratman first performs "Indonesia Raya", which later becomes Indonesia's national anthem