The phrase "and eventually the first" is correct and usable in written English.
It can be used when discussing a sequence of events or achievements, indicating that something is the first in a series after a progression.
Example: "After years of hard work, she became the leader of the project and eventually the first to present her findings at the conference."
Alternatives: "and ultimately the first" or "and in the end the first".
Gwyn was wounded at the Battle of the Wilderness in 1864, but returned to service after recuperating to take command of the Third, and eventually the First and Second Brigades of the First Division of the Union Army's V Corps.
Despite a cool initial reaction, Reeves persisted, and eventually the first presidential campaign commercials appeared.
His father, Joseph Carroll, was an Air Force officer and, eventually, the first head of the Defense Intelligence Agency.
After graduating from Yale and working as a teacher, Webster decided to write an American spelling book — and eventually, the first American dictionary — something many schoolchildren have resented since.
McNamara rose steadily up the company ladder: assistant general manager of the car division, group executive, and eventually the first non-member of the Ford family to become the company's president.
The couple made a dynamic duo, with Jessie the daughter of a powerful senator actively supporting John's ambitions as he rose to become a force in Californian politics and eventually the first Republican presidential candidate on the Free Soil (anti-slavery) platform.More and more in the following years the west became a flashpoint in the dispute over slavery.
In the 1930s, currency wars led to competitive devaluations, protectionism, high inflation, economic collapse, the rise of Hitler in Germany, and eventually the second world war.
With his team still searching for a breakthrough, McClaren made a triple substitution mid-way through the second half, introducing star players Martin, Liverpool loanee Jordon Ibe and Russell and eventually the second-half changes worked.
That led to overtime and eventually the Aggies' first tournament victory since 1970.
While the plan is to eventually launch one for many different cities around the U.S. and eventually the world, the first one is based around Austin, for SXSW.
"You can't act as if you are a third-world country and pursue protectionist policies, or engage in dumping, or not protect intellectual property at a time when we're now – when you're now the second and, eventually, probably the first-largest economy in the world".
