The Emirate of Transjordan became the HASHEMITE KINGDOM OF JORDAN in 1946. It has retained that name ever since.
Transjordanian Highlands or just Transjordan
Transjordan was created in 1921.
Transjordan
Transjordan memorandum was created in 1922.
No. The Transjordan became the kingdom of Jordan.
Ikhwan raids on Transjordan happened in 1924.
Israel and TransJordan
The tribe of Reuvain settled in the Transjordan.
It hoped to keep nomadic tribes out of Syria.
No. It's the other way around. most Jordanians are of Palestinian ancestry. Mandatory Palestine was historically more populous than Transjordan both because the area of Mandatory Palestine was less arid and because the New Yishuv improved living conditions in Mandatory Palestine whereas Transjordan did not receive similar attention. When the Palestinians fled overwhelmingly to Jordan after the Arab-Israeli War of 1948, they became the majority population in Jordan.
In 1922, the area that included modern Jordan was established called the Emirate of Transjordan. (It was semi-autonomous.) In 1946 on May 25th it became the independent Hashemite Kingdom of Transjordan. In 1950, the country was renamed the Hashemite Kingdom of Jordan . A link is provided to the U.S. State Department web page on Jordan.