The phrase "achieved on December" is correct and usable in written English.
It can be used to indicate the month in which a particular achievement took place.
Example: "The project was successfully achieved on December 15th, marking a significant milestone for the team."
Alternatives: "accomplished in December" or "completed in December."
From 1820 he lived in exile in Paraguay; the independence of his native Uruguay was finally achieved on Aug. 27, 1828.
And from the moment of their first flight — those famous 12 seconds achieved on Dec. 17, 1903 — they knew it would be of immense financial value.
After 14 days of commissioning and test observations, first light for Breakthrough Listen at Parkes was achieved on Nov. 7 with an observation of a newly discovered Earth-size planet orbiting the star nearest to Earth, Proxima Centauri.
He stressed that it was always the goal of ordination to the priesthood, which he achieved on Dec. 15, 1945, a month before his 26th birthday, that made him persevere.
The continued presence of those lawmakers in the still-new Democratic majority also leaves little room for Mr. Van Hollen to rise quickly in the leadership and reap his reward for any success achieved on Nov. 4.
Further, Mr. Palombi pledged Trinity's compliance with a request by the Real Estate Board of New York that "owners make deals based on market conditions as they were immediately preceding Sept. 11" and that "under no circumstances should rents be set at 'asking prices' or unrealistically high numbers that would not have been achieved on Sept. 10".
Furthermore, the index closed only about seven points shy of its year-to-date high of 1,459.68 achieved on Feb. 20.
The company's stock reflects none of that: At the end of the trading day Nov. 18, 1998, Sonic Foundry was trading at $8.94, but still lower than its alltime high of $9.13 achieved on Nov. 17, 1998.
Independence from Britain was achieved on December 12 , 1963 and the new national flag became official that day.
The first criticality was attained on November 10 , 1998and the rated power operation with the reactor outlet coolant temperature of 850 °C was achieved on December 7 , 2001
General elections for a House of Assembly were held in 1964, 1968, and 1972; self-government was achieved on December 1, 1973, and full independence from Australia on September 16 , 1975
