To commemorate Selangor's sacrifice, the Sultan decreed that an archway be built on the borders of the new Federal Territory and Selangor; this archway is the Kota Darul Ehsan that now towers majestically over a section of the Federal Highway between Bangsar and Petaling Jaya.
The state capital was moved to Shah Alam after the cession.
The Federated Malay States evolved into the Federation of Malaya in 1948, which became independent in 1957, and Malaysia in 1963.
The city of Kuala Lumpur functioned as both the national capital of Malaysia and the state capital of Selangor.
It may be possible that the banks of the Selangor River was full of bamboo groves in the distant past.
However bamboo do not grow well in the marshy soil of the lower reaches of the river.
The state also has the largest population in Malaysia, with a high standard of living and the state's poverty rate is the lowest in the country.