Technically only the peninsular of Malaysia(1957) and Sabah(1963) was independent on 31st August. Sarawak was indipendent from the British on 22nd July 1963. So Malaysia Day is more of a meaningful celebration -- even without the official statewide ceremony -- for the whole country.
Singapore departure on 9 August 1965 from Malaysia was actually a sad event because --personally-- if I think back about it our demographic would be very different. Population of Malay and Chinese would almost be equal, which made me wonder might it be better or worse.
I don't want to go into politics, but all Malaysian wish for a better Malaysia. Hopefully there's a better change, but if there's no change we have to change ourselves and help others in return. Let us start with some upvoting to our fellow Malaysian on Malaysia Day. I'm upvoting and resteeming some today, I can't do much with my low SP so again Happy Malaysia Day.