( VOY: ' Scorpion, Part II', ' The Gift')Дuring the brief war between the Borg and Species 8472 in late 2373, the USS Voyager was caught between the two belligerents. ( VOY: ' Survival Instinct') Seven of Nine remained a Borg drone until 2374, when she was liberated. She forcibly linked the other drones together into a temporary collective in order to suppress their identities, and they were retrieved soon after. The other drones, who were assimilated as adults, began to regain their identities upon being severed from the Borg Collective, but Seven was frightened as she knew nothing else but life as a drone. In early 2368, the Borg sphere that Seven of Nine, along with three other drones in her unimatrix, crash landed on a planet in the Delta Quadrant. ( VOY: ' Infinite Regress', ' Collective') She personally assimilated many individuals from a variety of species, including Humans, Klingons, Ferengi, Bajorans, Bolians, Krenim, and Cardassians.

As a drone, she assisted in the assimilation of millions, from individuals to entire species. She emerged as a Borg drone five years later in 2361, the turmoil of her forcible assimilation replaced with order, and spent the next thirteen years in the Collective with the designation Seven of Nine. Seven of Nine, Tertiary Adjunct of Unimatrix 01ДЄnnika was placed in a maturation chamber, where the hive mind began to restructure her synaptic pathways and purge her individuality. Naturally, the experience was traumatizing for Annika. They and their daughter were promptly captured and assimilated near B'omar space. The Hansens tried to evade pursuit by masking the Raven's warp trail, but the Borg still managed to pursue and find them. This left them exposed long enough for the Borg to detect them and perceive them as a target for assimilation. The ship sustained damage, including, most importantly, damage to the multi-adaptive shielding, which went off-line for 13.2 seconds. Their research came to an abrupt end in 2356 when an ion storm struck the Raven. They even went aboard Borg vessels, using bio-dampeners to remain undetected. They gathered a great deal of scientific data on the biology of Borg drones and the nature of the Collective by moving undetected through Borg space due to multi-adaptive shielding, invented by Magnus Hansen. Eventually, the Hansens encountered a Borg cube and followed it through its transwarp conduit into the Delta Quadrant, the Borg's region of origin. They spent a good deal of time aboard the Raven in search of the Borg Annika celebrated three birthdays aboard the ship. In 2353, they took Annika, then aged three, along with them. After a great deal of persuasion, the Federation granted the Hansens the use of the USS Raven, a small long-range craft, to aid them in their investigation. Time on the RavenДЄnnika's parents were exobiologists investigating the existence of the Borg.

( VOY: ' One Small Step')ДЄnnika's age when she visited her aunt conflicts with the age she and her parents departed Federation space. ( VOY: ' Author, Author') At one point in her childhood, she wanted to become a ballerina. She was very strong-willed and did not hesitate to point out if the strawberries used in baking the tarts were not perfectly ripe. Her favorite treats were strawberry tarts, which Irene used to coax Annika out of a guest room in which she had locked herself. ( VOY: ' The Gift') At the age of six, Annika once stayed with her Aunt Irene. ( VOY: ' Hunters') Her favorite color growing up was red. ( VOY: ' Dark Frontier')Дuring her childhood, she never visited Earth. Annika was born in 2350 on stardate 25479 at the Federation Tendara colony as the only daughter of eccentric exobiologists Magnus and Erin Hansen.

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