The user has provided an image with a timeline of historical events. The task is to extract this information and present it in a structured format. Based on the image, identify the events and their corresponding dates. The events are: 'Уничтожение республиканской формы правления' in 1478, 'Окончательное объединение северной Руси' in 1485, and 'Усиление западных границ Руси' in 1510. The user also provided elements like 'Мэш', 'ПЕ', 'УЧЕНИК', 'Прочее', 'Добавить событие', 'Завершить', and navigation arrows, which are UI elements and not part of the historical data to be extracted.