Timeline visualization shows the life trajectories of a man (blue) and a woman (red). For visualizing the date of a marriage (a) and divorces (b), we used vertical proximity. The proximity of the two nearby paths was reduced for marriages and increased for divorce. Estimated values are shown with a gradient. We use a gradient from white for estimated birth dates (c), to white for estimated death dates (d), and to white and back to the color for estimated dates of marriages and divorces (e).