Short answers, pulled from the story.
Russian forces engaged Ukrainian troops at Hostomel Airport on the 24th of February 2022. This key supply point for Russian troops near Kyiv was captured the following day.
Interior Minister Denys Monastyrsky announced that civilian volunteers in Kyiv had been given more than 25,000 assault rifles by the 26th of February 2022. These civilians also received approximately 10 million bullets along with rocket-propelled grenades and launchers.
A Russian missile struck the Kyiv TV Tower on the morning of the 1st of March 2022, killing five people and injuring five others. The attack severed all television transmissions in Kyiv during the height of the siege.
Ukrainian authorities announced that the entire Kyiv region had been recaptured on the 2nd of April 2022. This announcement followed successful counterattacks in late March and Russia's decision to withdraw its forces from the Kyiv area on the 29th of March.
Russia failed to seize Kyiv within the first two days as planned due to supply line breakdowns and tactical errors. CIA director William J. Burns noted on the 8th of March that the advancing convoy made little discernible progress over three days.